The 2012 , hosted by Toby Keith and Kristen Bell, will be broadcast live from the Bridgestone Arena in Nashville on Wednesday. Performers include Kenny Chesney, Lady Antebellum,Brad Paisley, Rascal Flatts, Willie Nelson andCarrie Underwood. Meanwhile, Denise Richards,Ashley Greene, Tony Hawk,Jordin Sparks, Sara Evansand Steve Austin will be among the evening’s presenters.