Many of the guest appearances on Big Boi's second solo album -- his third if you count Speakerboxxx -- were not expected. A chance encounter with Phantogram, facilitated by a music identification application, led to three of these songs. On "CPU," Phantogram fashion their hazy dream pop into low-wattage EDM. The MC likewise sounds more like the guest on the loopy Wavves collaboration "Shoes for Running." Consecutive tracks with Little Dragon fare better. The creeping "Thom Pettie," in which Big Boi is the dominant voice, is a highlight, while "Mama Told Me," co-written by the beloved Swedish hybrid group, is pleasant enough but more of a light robo-funk platform for lead singer Kelly Rowland. Big Boi adapts to the unfamiliar surroundings with little effort and often sounds comfortable. Bravest of all is "Tremendous Damage," a plaintive ballad in which Big Boi sings with deep sincerity. The more potent tracks include the blaring/booming "In the A," featuring Big Boi and T.I. in rapid-fire mode (and Ludacris in beat-over-check-cashing mode), the offhandedly boastful and Sleepy Brown-enhanced "The Thickets," and the stirring ATL-meets-Minneapolis folk-funk closer "Descending," yet another Little Dragon hook-up. [An LP version was released in 2012.] ~ Andy Kellman, Rovi

1		Thom Pettie
2		Mama Told Me
3		Lines
4		Shoes for Running
5		Raspberries
6		Tremendous Damage
7		Descending
8		Ascending
9		The Thickets
10		Apple of My Eye
11		Objectum Sexuality
12		In the A
13		She Hates Me
14		CPU