Frequent collaborations encourage Mouse On Mars' natural quirkiness. The duo flirt with bubbling lounge music on the Stereolab visitation “Miss Modular” and tap The Fall's acidic frontman Mark E. Smith for the serrated side project Von Südenfed. Junior Boys add breathy R&B overtures to “Putty Tart,” while ex-Battles member Tyondai Braxton helps them send “Off Sea” into the cartoonish stratosphere.