One Direction and Usher are performing at the iTunes Festival in September

One Direction and Usher will both be singing their respect­ive singles (and some album tracks) as part of the iTunes Festival this September.

The month-long festival, which takes place at the Roundhouse in Camden, London, will be opened by Usher on September 1, with One Direction playing on September 20. Other acts announced already are Jack White and Borah Jones, with more to follow.

"I am thrilled to jump start the iTunes Festival in London this year. I am honoured to set the stage for what’s to come," Usher told a press release modestly.

One Direction hair-wearer extraordin­aire Harry Styles had this to say about it all: "Every year we see some of our favourite bands and artists on the bill so to be part of the line up this year is obviously incred­ibly exciting and we're hugely grateful for the oppor­tun­ity. We can't wait to see our fans at the Festival."

Tickets are free for com­pet­i­tion winners and there's more inform­a­tion on all of that shit here.