New Releases: Jay-Z, Snoop Dogg, U2, Killswitch Engage, 2Pac & More

Also due Tuesday: Rock Star Supernova, Daughtry, Brand New, Sufjan Stevens, Simon Joyner, Sizzla.

Butch Walker Works With Avril, Hot Hot Heat, Says Solo LP Won't Be 'Emo-Tastic'

He'll also produce for Supernova, Tommy Lee's made-for-reality-TV band.