Katy Perry by Theo Wargo/ WireImage.com
Katy Perry may or may not kiss a girl come Sunday night at the MTV Video Music Awards, but she will act "Like a Virgin." The singer will perform the Madonna hit on the award show, host Russell Brand told MTV.

Early rumors had Perry ready to engage in a lip-lock onstage with Lindsay Lohan - and it could still happen as Lohan is scheduled to be a presenter. And lest we forget, "Like a Virgin" produced that infamous Madonna-Britney Spears (and Madonna-Christina Aguilera) saliva swap five years ago.

Aguilera will also hit the stage, which will be her first performance since giving birth to son Max in January.

Brand also dished on other much-anticipated performances: T.I. will debut "Live Your Life" with Rihanna; Taylor Swift will introduce the Jonas Brothers; and Kanye West will close the broadcast.

Spears, of course, will open the show.

The 25th annual VMAs airs live Sunday at 9 pm/ET. - Joyce Eng