Rap and R&B artist T-Pain and Dancing With the Stars champions Shawn Johnson and Mark Ballas will serve as presenters at the 2009 CMT Music Awards premiering live Tuesday (June 16) at 8 p.m. ET/PT. Also just announced as presenters are Rodney Atkins, Billy Currington, Julianne Hough, Naomi Judd, Martina McBride, Lee Ann Womack and CMT's Katie Cook and Lance Smith. Hosted by actor-comedian Bill Engvall, the awards show will include performances by Trace Adkins, Jason Aldean, Dierks Bentley, Toby Keith, Lady Antebellum, Brad Paisley, Kellie Pickler, Rascal Flatts, Darius Rucker, Sugarland, Taylor Swift, Keith Urban and Def Leppard. Additionally, Jason Michael Carroll, the Carter Twins, Eric Church, the Eli Young Band, Gloriana and Joey & Rory will appear on the Nationwide Insurance performance stage. Previously-announced presenters include American Idol's Randy Jackson, The O'Reilly Factor's Bill O'Reilly, actor Luke Wilson, Kid Rock and Ted Nugent.