Justin Bieber to headline Hyde Park's BST festival

Justin Bieber has been announced as the fourth headline act for next year's British Summer Time festival in London's Hyde Park.

The Sorry singer will bring his Purpose tour to the heart of the capital, where he will sing to 65,000 fans.

This will be Bieber's only London date next year, and will feature new tracks such as Where Are U Now, Love Yourself and What Do You Mean?, as well as some of his classic songs including Boyfriend and Baby.

Bieber has also announced he will play Cardiff's Principality Stadium on Friday 30 June, two days before the London gig.

"Justin Bieber has proven himself to be a master singer, songwriter and live performer," organisers said.

"Bringing the Purpose tour to Hyde Park next summer is without question the pop show of the summer."

The 22-year-old will be joined by supporting acts including Dutch DJ Martin Garrix, Swedish singer Tove Lo and pop-dance act Anne-Marie.

Bieber has a reputation in the UK for erratic onstage behaviour .

At his latest Manchester concert, the Baby star dropped the mic and walked off stage after asking fans to stop screaming.

"I don't think it's necessary when I'm trying to say something and you guys are screaming," he told the crowd.

"Obviously Manchester can't handle me," he added.

"So I'm going to quit talking for the rest of the night and just do the music."

The fifth British Summer Time festival in Hyde Park had already announced three major headlines: Phil Collins on Friday 30 June, Green Day on Saturday 1 July, and Kings Of Leon will be making their only UK festival appearance on Thursday 6 July.

Tickets start at £65 and will go on fan club and Barclaycard pre-sale from 9am on Monday, event pre-sale from 9am on 15 December, and general sale on 16 December.