The playlist is marked as follows:
Press Start to Continue DLC, 10/23/17
Audio Player
Tag: Foxarocious
Press Start to Continue DLC, 5/29/17
Audio Player
THE RETURN OF NERDCORE!
Press Start to Continue DLC, 2/13/17
Audio Player
MC Frontalot interview!
Find his stuff at Frontalot.com, and specifically those cool Propaganda posters he made during the 2016 election (http://endtimes-jkc.tumblr.com)