The members of OK Go have always been known more for the zaniness of their music videos (remember their treadmill-based YouTube favorite "Here It Goes Again" in 2006?) than for the zaniness of their music. Working with Flaming Lips producer Dave Fridmann, OK Go seems determined to change that on its latest album, "Of the Blue Colour of the Sky," an effort that reflects a broadening of the group's stylistic palette. The set careens confidently from the Prince-inspired fuzz-funk of opener "WTF?" to the slinky live-band R&B of "I Want You So Bad I Can't Breathe" to "This Too Shall Pass," a thudding psych-pop anthem in the mold of "Kids" by MGMT. It's not all so good-naturedly goofy. On "While You Were Asleep," frontman Damian Kulash floats his heartbroken croon over a zero-gravity space-soul groove, while "Last Leaf" is hushed acoustic folk that should please fans of late singer/songwriter Elliott Smith.