Madonna, Sting, Janet Jackson: Just a few of the big names who've performed at the MTV Music Video Awards. And now, the Jonas Brothers get ready to join that elite list. ET was on hand for a press conference Friday as the pop trio announced they'll flex their musical muscles at the annual awards show, set to air live September 7 at 9 p.m.

Though the brothers didn't reveal what irresistibly catchy tune in their back catalog they'd play, they did divulge that the song would involve fan interaction.

Then, after bopping through a cover of Shania Twain's "I'm Gonna Get You," they revealed that Joe graduated high school this week!

The Jonases and their "Camp Rock" co-star Demi Lovato are touring together this summer, after which they'll get back to work on their respective Disney Channel series, "J.O.N.A.S." and "Welcome to Motherhood."