Dave Matthews, Trey Anastasio and more join HeadCount.org campaign
Rocker sings on 'The Wanderlust,' helps on 'Pale Blue Eyes' cover
The group was then billed as Mookie Blaylock
Group talk System of a Down tour, cover songs
The Green Day singer has already taped his appearance
'I listened to a lot of Irma Thomas and tried to get that old soul into it'
Digs out deep cuts 'Family Snapshot' and 'No Self Control'
Features will spotlight magazine pieces, sports columns and what I'm reading
First taste of pop star's upcoming seventh LP will hit radio on Wednesday
The punks offer a taste of their album trilogy
'Game Change,' Louis C.K. have strong showings
John Darnielle contemplates anxiety, longing on new LP
Plus: listen to the set's lead track, 'Same Thing'
Nucky loses a major foothold while tending to his affair(s) in New York
Country star will start revealing new music this week
Band apologizes for iHeartRadio incident
Plus: Emma Watson Finally Graduates from Hogwarts