Kelly Rowland and Jessie J to play on 1Xtra Live tour

Kelly Rowland will perform at Brixton Academy in London on 1 December

X Factor judge Kelly Rowland is among the headline acts on this year's BBC Radio 1Xtra Live tour.

The singer appears on the bill with acts such as Jessie J on the tour, which starts later this month.

Kelly Rowland announced her involvement in a joint radio broadcast on The Chris Moyles show on Radio 1 and with Twin B on BBC Radio 1Xtra.

Other performers on the four-date tour are Wretch 32, Nero, Chase & Status, Dappy and Tinchy Stryder.

The free urban music shows take place at Manchester Apollo (Monday 28 November), Birmingham Academy (29), Bristol Academy (30) and London's Brixton Academy (1 December) and are broadcast by 1Xtra and Radio 1.

Rowland, who will play Brixton, performed at the first 1Xtra Live event in 2008 in Coventry.

The former Destiny's Child singer flew back to the UK on Wednesday after missing last weekend's X Factor through illness.

BBC Radio 1Xtra's new controller, Ben Cooper, said: "These are the most ambitious live music events that 1Xtra has ever staged.

"We hope to connect with as many of our listeners as possible, whether they're at the gigs, listening to the radio or watching online.

"It's a big moment for us to celebrate what the station stands for; the very best in urban music and fresh new talent."

Ticket registration opens from 8.30am on 4 November and will close at 9am on Friday 11 November.

Tickets are free and limited to two per person.

The line-ups are as follows:

Manchester (Monday 28 November) - Wretch 32, Dappy, Labrinth and Tinchy Stryder

BBC Radio 1Xtra presenters MistaJam and Trevor Nelson will co-host the show. Charlie Sloth and Cameo will be DJ'ing between sets.

Birmingham (Tuesday 29) - Nero, J. Cole, Skream (With Sam Frank) and Maverick Sabre

BBC Radio 1Xtra presenters MistaJam and Twin B will co-host the show. Semtex and Tim Westwood will be DJ'ing between sets.

Bristol (Wednesday 30) - Chase & Status, Ms Dynamite, Benga, Youngman and Delilah

BBC Radio 1Xtra presenters MistaJam and Gemma Cairney will co-host the show. Bailey and Ace & Vis will be DJ'ing between sets.

London (Thursday 1 December) - Kelly Rowland, Big Sean, Jessie J and UK Female Allstar MCs featuring Mz Bratt, Lady Leshurr, RoxXxan, Lioness, Baby Blue and A.Dot.

BBC Radio 1Xtra's MistaJam and Trevor Nelson will co-host the show. Ronnie Herel and Robbo Ranx will be DJ'ing between sets.