Air's electro-pop generally lives up to the group's name. But their fifth LP sounds a bit, well, polluted. "The world is on the brink … of extinction," intones a fried robot voice on the opener, "Do the Joy," while vintage synths ride a gnarly stoner-rock bass line. Actually, the new dirt and gravitas are refreshing, as is the groove weight of guest drummer Joey Waronker. "Eat My Beat" conjures crisp blaxploitation funk, "Night Hunter" sounds like DJ Shadow channeling Fela Kuti's ghost, and "Love" rocks a kickin' click track. It's all like a dream of a Seventies soul jam adrift on a space station, wondering when it'll be safe to come home.