Sounds like the show Bands Reunited, only they have to compete against each other on stage in front of an audience, not documentary style. Have you guys seen that show Hit Me Baby One More Time, where old singers and bands sing their classic hits, and then sing a recent song by another artist? I was cracking up when Wang Chung sang Nelly's Hot in Herre. I wanted them to win. But I wonder why Irene Cara won though. Whoever the sudience picks wins money for their charity of choice. I was also glad to see Howard Jones perform again. I demand a recount for Wang Chung to win!
Also, on Stereogum, I read an entry naming the most embarrassing CD people have ever bought. If you know me, you'll probably see my embarassing entry, hehehe. Dare to take a guess?