N-Dubz have faced a round of questions from the press minus a member for the second time in a month, but Tulisa and Fazer insist it was just a mistake.

Dappy was missing from the line-up after the Orange RockCorps event on Friday night.

"Dappy has been a naugty boy," said singer Tulisa.

"Well, he hasn't been naughty, he's gone to pick up his kid, he didn't know there were any interviews," she added.

It comes just weeks after Dappy missed the Mobo nominations event in London after getting stuck in Greece.

There was speculation the other members were upset, but Fazer blasted the rumours as rubbish.