N-Dubz fall out over V Festival dressing room arrangements?

N-Dubz are said to be on the verge of falling out over plans for this weekend's V Festival.

The trio will perform on the 4Music stage at the event, which takes place in Staffordshire and Chelmsford on August 20 and 21.

However, tensions are allegedly running high in the group after band member and new X Factor judge Tulisa Contostavlos asked if she could have her own dressing room.

Contostavlos apparently wants to avoid any confrontation between fellow bandmate and cousin Dappy and his long-term partner Kaye Vassell, who will also be in attendance at the festival.

A source told The Sun: "Kaye is going with a load of friends who call themselves The Bad Bitches.

"She might be the mother of Dappy's children but he doesn't want to bump into them and have a run-in."

They added: "It's part of the reason Tulisa is going to use her own dressing room, she wants to avoid the stress."

Contostavlos recently dismissed rumours that she had fallen out with her bandmates after reports suggested that rappers Dappy and Fazer were unhappy with her launching her own solo career on The X Factor.

Watch an exclusive video of N-Dubz performing a mash-up of Jay Sean's 'Down' and Black Eyed Peas' 'Meet Me Halfway' below: