Jack Ü (also known as Skrillex and Diplo) is an American EDM DJ duo, side group and collaborative project, consisting of Mad Decent founder Diplo and OWSLA founder Skrillex, formed in 2013. Jack Ü performed at Ultra Music Festival Miami in 2014. They released their first official single "Take Ü There" featuring vocals from Kiesza on September 17, 2014. On February 3, 2015, the duo announced that they would be working with Missy Elliott on a remix to "Take Ü There". They released their debut album Skrillex and Diplo Present Jack Ü on 27 February 2015.
Jack Ü also performed at Ultra Music Festival in 2015 with the entire "Jack Ü crew", featuring live contributions from CL, Kai, Diddy, Kiesza, and Justin Bieber.