Best Rock Album:
AC/DC, Black Ice
Eric Clapton and Steve Winwood, Live from Madison Square Garden
Green Day, 21st Century Breakdown
Dave Matthews Band, Big Whiskey and the Groo Grux King
U2, No Line on the Horizon
Best Rap Solo Performance:
Drake, "Best I Ever Had"
Eminem, "Beautiful"
Jay-Z, "D.O.A. (Death of Autotune)"
KiD CuDi, "Day 'n' Nite"
Mos Def, "Casa Bey"
Best Song is awarded for the lyrics of the song not for popularity or music, I believe these songs most of them shouldve been nominated on record for memorable hooks and music.
Best Rap Solo Performance:
Drake, "Best I Ever Had"
Eminem, "Beautiful"
Jay-Z, "D.O.A. (Death of Autotune)"
KiD CuDi, "Day 'n' Nite"
Mos Def, "Casa Bey"
Best Country Performance by a Duo or Group with Vocals:
Brooks & Dunn, "Indian Summer"
Zac Brown Band, "Chicken Fried"
Lady Antebellum, "I Run To You"
Rascal Flatts, "Here Comes Goodbye"
Sugarland, "It Happens"