The Guest Appearance: Phantogram
The Song: "CPU"
Why We Enjoyed It: Big Boi is obviously a big fan of this Saratoga Springs, N.Y.-based indie band. In addition to "CPU," they also appear on "Objectum Sexuality" and "Lines." But, Big Boi gives the duo the most shine on "CPU" and vocalist Sarah Bethel makes the most of it by crafting a catchy hook that'll be stuck in your head long after you log off iTunes.