Kimmy Schmidt and her roommate Titus Andromedon are members of the Columbia House Tape Club and receive their four cassette tape compilation Now That Sounds Like Music. To quote the liner notes, it's, "Music inspired by, but legally different from, the music you love."
One artist on the compilation is Shanson with the song, "Yumbip". The song is a close enough version of "MmmBop" by the real life brother band Hanson. The only other piece of information given is that Shanson are three albinos.
From the "Kimmy Meets a Drunk Lady!" episode (15 Apr. 2016) of the series Unbreakable Kimmy Schmidt.