After he wraps up Indiana Jones and the Kingdom of the Crystal Skull, Disney Channel alum and Transformers star Shia LaBeouf may be tackling a far less family-friendly role: The 21-year-old hopes to play horror-core rapper Cage in a biopic that should make Eminem's 8 Mile look like Mary Poppins.

Who? While a lot of Lyricist Lounge-era artists abandoned hip-hop or tripped into obscurity circa 2002, Hangar 18 signed to then-emerging powerhouse Def Jux and hit the long road. With paWL manning all production, MCs Windnbreeze and Alaska of New York's Atoms Family collective turn out off-beat wit and semi-didactic rhymes that demand multiple listens.