Last weekend Justin Bieber joined Diplo and Skrillex on stage at Ultra Music Festival. In addition to Justin Bieber, Skrillex brought on stage Diplo, CL and P. Diddy.

As the popularity of Jack U x Justin Bieber's “Where Are U Now” continues to build, drummer Luke Holland decided to reveal his one-of-a-kind cover of one of the most talked about songs of the year.