The gold-plated USB necklace that holds three new remixes (by Switch, Leo Justi and the track's original producer, Danja) of M.I.A.’s "Bad Girls" is up for preorder now; they'll be shipped out on July 6th. But Beyonce already has one, and was spotted wearing it over the weekend at BBC Radio 1's Hackney Weekend festival, where M.I.A. performed with Jay-Z. Another Hackney performer, Azealia Banks, drops in for a verse on Danja's N.A.R.S. remix, named for the Virginia-born producer's label. Stream it below, via Danja's blog. Banks will release a new mixtape, Fantasea, in July. Originally scheduled to drop on July 4th, its release has been pushed to July 11th, she announced today.