Take a look at the Billboard Hot Dance Club Play chart recently and rising above Rihanna, the Black-Eyed Peas and the Killers it's ... wait for it ... wait for it ...Yoko Ono. What's more, 'I'm Not Getting Enough' is actually Ono's third consecutive gold medal as far as the dance charts are concerned.

Maybe being No. 1 is something she learned from her husband, the late John Lennon, but one hardly pictures Yoko Ono when thinking about clubbing. Lately, though, Ono has turned into something of an ambassador for the sport of dancing (and a proponent of club remixes). Ono tells Spinner that "dancing gets more blood in your brain than marching" and, she says, it is the best way to move through life.

Does that mean that Ono goes out from dusk 'til dawn on the weekends? Well, not exactly. "In my case, I'm a conceptual artist," Ono says. "It's really helping my life in the sense that the times when I really want to dance but I can't -- because I just can't go to a club by myself or something -- I think, 'OK, I'm just dancing in my mind.' So that's good."

Yoko Ono has proved herself a good judge of talent. After all, she did bag (literally!) one of the greatest musicians of all time. With her 100 percent track record on the line, she told Spinner recently that she supports Britney Spears and finds her "very courageous." That endorsement could have something to do with Ono's recent obsession with dance music -- even if Spears is prone to lip-syncing, she's still got the moves.

With Kanye West, Ben Gibbard, Tom Waits and other famous musicians telling the world that Twitter accounts attributed to their highnesses are actually by imposters, @yokoono is not only the real deal, but she's actually using the platform to reach out to fans personally while spreading her message of (surprise, surprise) peace and love. "Yes, I'm doing it, I'm doing it!" Yoko Ono tells Spinner of her Twitter account.

Ono not only writes her own tweets, she also responds to people and direct messages. "I don't do it for everybody, just the interesting ones. When I say interesting ones, what I mean is I read it and I say, 'Oh my god, I feel like I want to say something.' But I don't want to become like 'Dear Abby' you know?"

For most of us, grease constitutes the majority of our fast food intake, and not much else. For filmmakers Joey Carey and JJ Beck, it's the key to a greener Earth.

This Earth Day, we honor the spirit of the two directors, who embarked on a cross-country road trip in a 'Greasecar,' powered only by vegetable oil. The film -- which also features Morgan Freeman, Yoko Ono and Tommy Chong -- is part of SnagFilms' Earth Day video playlist and is currently streaming for free on their site. Have a look at this remarkable journey and other environmentally friendly flicks, including Jack Johnson's lesson on 'The 3 R's' (reduce, reuse, recycle), below and keep it green.

Fun facts for the day: Yoko Ono goes barefoot ... in the shower! With her big head and small body, John Lennon called her "Martian." And she really loves a nice pair of gloves, but she really hates wearing them.

Well, you don't say. Blame the suddenly inescapable "25 Things" fad. The surrealist who met her future husband when she handed him a card that said "Breathe" has posted her own 25 Things on Facebook.

She once posed nude with John for an album cover. That was the '60s. In today's culture, "letting it all hang out" means divulging that she wiggles her toes in waiting rooms. Which one is TMI?

A blues musician from Chicago and one from the Delta would have no problem getting onstage and jamming on a riff. So why should it be a surprise when Greek singer Savina Yannatou and Persian-rooted Mamak Khadem teamed up the other day at a Los Angeles concert for an unaccompanied, totally unrehearsed, improvised vocal duet?

"I've improvised on record, so this shouldn't be very different," said Khadem before the show with a little nervous laugh."

"We felt each one of us know what she would do," said Yannatou after. "We thought it could not be a disaster."

Indeed. The duet was a rousing success, the sweet frosting on top of what was already a well-frosted cake of an evening. Khadem's opening hour showcased material from her fine 2007 album 'Jostojoo,' featuring music gleaned from studies she'd done in Greece, Turkey and Iran with lyrics derived from classical Persian poetry, played by a band that ranged into Armenian, Balkan and Kurdish traditional styles with a few modern touches, to boot.

Paul McCartney and Yoko Ono are furious over a new book called 'John Lennon: The Life,' written by respected Beatles biographer Philip Norman, which claims that Lennon fantasized about sleeping with his mother and wanted a gay relationship with McCartney.

"I don't think [the gay claims] are true," McCartney told the Sun. "John never ever tried anything, I slept with him a million times. I've seen him on tour roaring drunk, out of his mind in the early days before he sobered up and went to rehab. Roaring drunk and it was always with a female."

"If you've got a little gay tendency and you're roaring drunk I'd have caught him once," McCartney concluded.

Both McCartney and Ono initially approved the book, and even granted interviews. Not surprisingly, Ono, 75, has completely withdrawn her endorsement of the book, which is due out next month.