Jack Ü is an American DJ duo, side group and collaborative project,
consisting of Mad Decent founder
Diplo
and OWSLA founder
Skrillex,
formed in 2013.
Jack Ü's debut performance took place at the Mad Decent Block Party in San Diego
on September 15, 2013, which is a nationwide tour that record label Mad Decent
puts together in order to showcase different artists signed to the label
-Wikipedia