Tegan and Sara Perform Old Favorites at Chicago Show

Canadian twins Tegan and Sara sure know how to put on a show. At the Aragon in Chicago Friday night, the Quin sisters opened with a handful of new songs from last year's 'Sainthood,' then promised the enthusiastic crowd that after performing the new ones, they'd play the old favorites.

The duo, accompanied by a backing band, whisked through six new tunes including the twinkling melodies of 'Alligator' and opener 'Ocean,' then took a moment to address the crowd. "It's been a long time since we've played Chicago, so you might not remember this one," said Sara Quin. "We encourage you to sing along. Here's the invitation. I hope you RSVP."

The audience came through and immediately began shouting out the lyrics to classic 'Walking with the Ghost' from 'So Jealous.' The girls stayed with 'So Jealous' for a few songs, but during their rendition of 'Where Does the Good Go,' the twins abruptly stopped mid-song to announce that someone had thrown their "britches" onstage.

Apparently an overeager audience member displaced their delicates. Taken aback, the sisters joked the recession must not be hurting the U.S like it is in Canada for people to just give away their articles of clothing. Sara mentioned she wasn't the kind of girl to help put someone's bra back on, but alluded that the openers, Holly Miranda and Steel Train, would be happy to oblige.

Moving on with more older nuggets, they played "old downer song" 'Monday Monday Monday' to a slow tempo, then delved back into 'Sainthood' again. After playing 'Nightwatch,' the girls coerced the audience into singing happy birthday to their drummer who, who had just turned 30. Before playing the penultimate song, Tegan told an anecdote about being desperately in love with someone who didn't feel the same way but whom she hoped would come to one of her shows one day and hear the song. Then she delivered the punchline. "Oprah, when you're ready," she said, dedicating 'The Con' to her.

For the encore, the wondrous Quin sisters played an acoustic guitar-centric five-song set comprised of 'Back in Your Head' and a couple of other songs from 'The Con,' as well as 'Feel it in My Bones' (their collaboration with DJ Tiesto), and 'Living Room,' from their second record, 'If It Was You.'

Before the twins dazzled the audience with their hilarious banter and beautiful melodies, opener Holly Miranda complemented Tegan and Sara with her luscious vocals. The former lead singer of New York group the Jealous Girlfriends sang ruminative songs like 'Waves' from her solo record 'The Magician's Private Library,' her voice soaring over the venue's muddled sound system.

Joined by second opener Steel Train for 'Pelican Rapids,' Miranda, who is gay, stated, "Anyone who wants to get married has the right to get married." Miranda returned the favor by joining Steel Train for their cover of David Bowie's 'Under Pressure.' Miranda will be embarking on her first headlining tour later this spring.

Tegan and Sara on AOL Music