New music: in stores and online, May 12

New music: in stores and online

The guys in Green Day (pictured) unleash their latest punk-rock opera, Brit-rockers Maximo Park follow-up their heavy hype, and members of Maroon 5, Phantom Planet and Gomez unite to form a super-group dubbed Operation Aloha—Metromix has full reviews of this week's biggest releases (listed below), as well as quick takes on fresh LPs from the likes of the Crystal Method, Cam'ron, Paul Wall, Bloc Party, Graham Coxon and more, inside the photo gallery.

Green Day, '21st Century Breakdown'

Meat Puppets, 'Sewn Together'

The Datsuns, 'Head Stunts'

Steve Earle, 'Townes'

Maximo Park, 'Quicken the Heart'

Jeremy Enigk, 'OK Bear'

Aiden, 'Knives'

Operation Aloha, 'Operation Aloha'

Which of this week's releases have got your attention? Tell us in the comments section.