After the striking success of their first album, MGMT has grappled with questions about what it means to be rock stars in the 21st century, where bands get chewed up and spit out like breath mints. With their latest album release, MGMT may have found the blueprint for success, and it comes as a relief for everyone who had their fingers crossed for them not to eat the dirt like so many other one album wonders.

The musical juggernaut that is AC/DC has decided yet again to bless the collective musical universe with a new product. “Backtrack,” a new three-disk box set, contains some fun and delightfully odd and obscure tracks, as well as more live songs and video footage than you can shake a guitar at.