Flo Rida vs. Leona Lewis vs. Alicia Keys vs. Lil Wayne ft. Static Major vs. Timbaland ft. OneRepublic vs. Jordin Sparks ft. Chris Brown vs. Sara Bareilles vs. Usher ft. Young Jeezy vs. Ray J & Yung Berg vs. Rihanna vs. Coldplay vs. Katy Perry vs. TI vs. Natasha Bedingfield vs. Chris Brown ft. T-Pain vs. Ne-Yo vs. Colbie Caillat vs. Mariah Carey vs. Madonna ft. Justin Timberlake vs. Pink vs. Finger Eleven