Twenty is a nice, round number. But isn't 21 the birthday where you really throw a party?

So it might be in 2009 for Sub Pop Records -- if it's up to label patriarch Bruce Pavitt. Asked to name one absent band he would have liked to see at this past weekend's SP20 two-day anniversary show, Pavitt replied, "Reverend Horton Heat, who I think is a national treasure -- a musical genius and an amazing performer. I would love to see him at next year's festival."

Yeah? You think that's gonna happen?

"I'm gonna make it happen. Jon [Jonathan Poneman, the label's other founder] doesn't know that yet."

("Yeah," Poneman responded the next day. "He can put it on all by himself.")

The 25-band charity concert at Marymoor Park in Redmond, Wash. turned out to be as satisfying for the newer artists -- Iron and Wine were clearly the top draw, and Fleet Foxes the most ascendant -- as its eagerly anticipated Class of '88 reunions: Les Thugs, the Fluid and, of course, Green River, the grunge band that began it all so long ago its first EP came out on Homestead Records. Its members then fractured into Mudhoney and Mother Love Bone ... and Mother Love Bone begat Mookie Blaylock, which soon changed their name to Pearl Jam. Frontman Mark Arm winked at Green River's supergroup pedigree by going even further back in time to introduce the band.

"Bruce Fairweather and Jeff Ament, from the Montana hardcore band Deranged Diction!

"Steve Turner and Stone Gossard, from the proto-grunge band the Ducky Boys!

"From Spluii Numa, Alex Shumway!

"Oh, and I'm the evil genius behind Mr. Epp."

Led Zeppelin will reportedly play four shows in Toronto this summer at the Skydome/Rogers Centre stadium this August. A "reliable source" tells MuchMusic that the dates will be announced shortly. No other shows will be announced, and the band apparently will not tour in the U.S., according to the report.

Rumors of a Led Zeppelin tour have ballooned since December, when the three surviving original members and drummer Jason Bonham performed a two-hour concert at London's O2 Arena as part of a tribute to the late Atlantic Records co-founder Ahmet Ertegun. Guitarist Jimmy Page and bassist John Paul Jones seemed eager at the time to continue the reunion, with singer Robert Plant widely viewed as the lone holdout.

Plant is touring through to September with singer Alison Krauss in support of their 2007 disc, 'Raising Sand.' However, Plant has not dismissed performing with Zeppelin in the future. "I really enjoyed it. And hopefully, one day we could do it again for another really, really good reason," Plant told Uncut following that gig. After exiting the stage at the conclusion of that show, bassist John Paul Jones admitted, "it felt like the first night of a tour."

"You think, 'Oh, I could do that a bit better, or change something in that song,'" Jones added. "And we didn't get a chance to do any more." The band has supposedly been offered as much as $200 million for a full tour.

Last month, Ray Davies told the UK's Daily Mail that the original members of the Kinks would reunite after nearly 40 years. Davies' brother, Dave, suffered a stroke in 2004, but the lead singer insisted the group would play together again. "I think Dave's getting better and Mick's still playing," he said. "It would be great to get back together just to see what musical ideas we had and what would happen."

However, Dave Davies feels differently, to say the least. "It would be like a poor remake of 'Night of the Living Dead,'" Dave said of the reunion in a November post on his website. "Ray has been doing Karaoke Kinks shows since 1996."

For the vast majority of people who had traveled to the O2 Arena in London from a total of 50 countries, according to vocalist Robert Plant, to see the mighty Led Zeppelin play their first full show in nearly 28 years, the idea of merely being in the same building as the legendary rock group -- Plant, guitarist Jimmy Page, bassist John Paul Jones and drummer Jason Bonham (taking over on this night for his late father, John Bonham) -- was more than enough. One gentleman told Spinner that he sold his truck and came from Canada just to be here -- and was happy he did. And after a video clip highlighting the rock heroes' 1973 record-breaking stand in Tampa, Florida, a show that broke the Beatles' attendance record at the time, the long-awaited moment arrived as the quartet thundered into the first album's 'Good Times, Bad Times.'

It was evident from the start that Zeppelin was still the powerhouse of old. After following the show starter with very strong versions of 'Ramble On' and 'Black Dog,' the latter of which sent the crowd into a frenzy, the slightly retooled foursome hit hard-rock ecstasy on an extended 'In My Time of Dying.' With every eye in the house riveted on the band, the quartet took the song into a series of explosions, every one more ferocious than the previous.

Late last summer, whispers of a My Bloody Valentine began and since then, a steady but wobbly stream of rumors have been torturing shoegaze aficionados worldwide -- until now.

According to several sources, the legendary British fuzz rockers will, in fact, be reforming -- and not just for a (now sort of cliche) reunion show at 2008's Coachella Valley Music festival. Many bands have used the three-day event as a platform from which to launch their comebacks, with some bands (Jesus & Mary Chain) pulling it off better than others (Happy Mondays).

While a headlining gig at the dessert festival is still unconfirmed, frontman Kevin Shields did confirm that new material is in the works -- specifically, a compilation of previously recorded material with "a little bit of new stuff" that will be released by the end of the year. So, what can we expect from the new stuff? "It sounds like what we sounded like -- different but not radically different," he explained. "People will go, 'Yeah, it sounds like My Bloody Valentine.'"

Those lucky ticket holders for the most anticipated reunion show of the year, if not the decade, will have to anticipate a wee bit longer. The reconvening of Led Zeppelin for the first time in almost 20 years, scheduled to take place at the O2 Arena in London on Nov. 26, has been pushed back two weeks, to Dec. 10. The reason for the announced delay is that Jimmy Page has broken a finger, which will preclude him from playing guitar for three weeks, on advice of doctors.

"I am disappointed that we are forced to postpone the concert by two weeks," Page said about the long-sold-out show, for which a million ticket requests were reportedly made. "However, Led Zeppelin have always set very high standards for ourselves, and we feel that this postponement will enable my injury to properly heal and permit us to perform at the level that both the band and our fans have always been accustomed to."

The concert, a tribute to the late Atlantic Records founder Ahmet Ertegun, will also feature Bill Wyman and the Rhythm Kings, Paul Rogers, Foreigner and Paolo Nutini. Information about ticket refunds, as well as other info, can be found at www.ahmettribute.com.

Bono is set to collaborate with ... the Spice Girls? It's actually not as frightening as it sounds. The U2 frontman has written a song for the British quintet's forthcoming greatest hits album, and Posh, Baby, Ginger, Scary and Sporty will perform it on their fast-selling world tour. "Bono's involvement has lifted the whole camp and he's delighted to have been asked and add his experience," a source told the UK's Mirror.

"There's been a bit of unease as to how the album will perform and if there's still a solid Spice Girls' fanbase out there," the source told the paper, yet the Girls' London date sold out in a mere 38 seconds. No word on whether the globe-trotting Irishman will hop onstage with the ladies for a sing-along.

In the past few weeks, John Lydon the gentle, demure former TV host has been replaced by his brash, opinionated alter ego, the man appropriately called Johnny Rotten. The first of the Sex Pistols' chief rabble-rouser's Rotten pronouncements was to determine that Rudy Giuliani was "scary to high hell" in a roundup of presidential candidates he recently gave to Spinner, sparing none of the other 2008 White House aspirants in the process.

Now, on the heels of an announced one-off reunion of his notorious '70s punk band to commemorate the 30th anniversary of its only album, 'Never Mind the Bollocks, Here's the Sex Pistols,' he has taken potshots at the also recently reconstituted Police. When asked to compare the Police, who are in the midst of a yearlong international reunion tour, to the reconvened Pistols, Lydon instead decided to compare the late-'70s/early-'80s multiplatinum trio to "soggy old dead carcasses."

Perhaps it's a reaction to all the attention Led Zeppelin have been receiving for their hotly anticipated one-off reunion in November, but the Sex Pistols once again endeavor to poke a finger in the bleary, heavy-lidded eye of dinosaur rock. The fiftysomething-year-old punk spearheads have announced on www.nme.com their intention to play one and only one concert to commemorate the 30th anniversary of their one and only album, 'Never Mind the Bollocks, Here's the Sex Pistols.' The show will take place at the Brixton Academy in London on Nov. 8.

All four original members -- John Lydon (a.k.a. Johnny Rotten), Steve Jones, Paul Cook and Glen Matlock (who was replaced in the band by the late Sid Vicious in 1977) -- will take part in the concert. The Pistols have participated in full-fledged reunion tours in 1996 and 2003 but pointedly declined the honor of showing up for their induction into the Rock and Roll Hall of Fame in 2006.

In an interview with Spinner two weeks ago, Lydon alluded to the idea of the Sex Pistols playing again, but, to quote punk hero LL Cool J, don't call it a comeback. "Occasionally we get together and perform live," the once and future Mr. Rotten told us. "We've never broken up and we don't use the word 'reunion,' 'cause it's not applicable."

Read the full interview with Johnny Rotten here.

Giving truth to recent rumors, the members of Led Zeppelin have officially announced that the band will re-form for the first time in almost 20 years to headline a charity tribute concert. The show, to take place on Nov. 26, will honor the memory of Atlantic Records co-founder Ahmet Ertegun, who signed the legendary rockers to his label in 1968 back when they were calling themselves the New Yardbirds. The appearance will mark the first time that Robert Plant, Jimmy Page and John Paul Jones will perform together under the Led Zeppelin name since 1988, with the late John Bonham's son Jason behind the drum kit, as he was during that last concert reunion of the three surviving members.