From the minds of producer RJD2 and singer Aaron Livingston comes Icebird, a collaborative new group in the spirit of one producer/one vocalist duos. Leaning on the psychedelia-laden soul of Funkadelic, Rotary Connection, and Gnarls Barkley, the album The Abandoned Lullaby spans from wig-out rock to groove-heavy funk with two feet firmly planted in both the past and the future. Aaron appeared on the Roots' ''Guns Are Drawn'' and rjd2 did some stuff here and there too (Mad Men, Massive Attack, Mos Def, etc.).  Together, these two bring together the best of both top-notch production abilities and amazing vocal tone. RJD2 says, ''It is truly a best-of-both-worlds collaboration. More than as a player, singer, or engineer, production is my strongest suit. And Aaron is truly one of the most unique, clever, and gifted singers I've ever had the pleasure of working with. The two elements complement each other perfectly.''