After RihannaRihanna, ParamoreParamore and PinkPink were announced early Thursday afternoon (August 21) as performers at the 2008 MTV Video Music Awards, you might have thought that was enough star power for one day. You might have thought wrong!

T.I.T.I. — one of the most successful rappers in the business and a top-10 finalist in MTV News' "Hottest MCs in the Game" competition earlier this year — has also been announced as a performer on the show. He'll be performing a track from his forthcoming LP, Paper Trail.

Earlier Thursday, MTV revealed that Paramore (nominated in the Best Art Direction in a Video and Best Rock Video categories) will rock the crowd with a performance of their hit "Misery Business," while Pink is set to perform her new single, "So What," and Rihanna (who could walk away with the Moonman for Best Female Video) will deliver her latest smash, "Disturbia."

Over the past few weeks, Lil Wayne, the Jonas Brothers and Kid Rock were all confirmed to take the 2008 Video Music Awards stage.

A list of presenters and additional acts gracing the VMA stage will be announced in the coming weeks. This year's awards show, which airs live September 7 at 9 p.m. from the legendary Paramount Pictures Studios in Hollywood, will be hosted by British comic and "Forgetting Sarah Marshall" co-star Russell Brand.

Want to attend this year's VMAs? Well, here's your chance. One lucky viewer will be honored at this year's awards for the good work they've done. Think.MTV.com, MTV's online community for youth activism, is hooking up one young activist and shipping them off to Los Angeles to attend the VMAs, and it could be you. From now until August 22, all Think.MTV.com members who join the "Do Good. Go to the VMAs" group can enter to win two tickets to the VMAs, along with travel and hotel accommodations.