Which of these songs by Skrillex features Fatman Scoop as a side artist?

The answer is "Recess" because it is the only song by Skrillex that features Fatman Scoop as a featured or side artist. "Recess" was released in 2014 and it combines Skrillex's signature electronic sound with Fatman Scoop's energetic vocals, creating a unique and dynamic collaboration between the two artists.