<p><br /> 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.<br /> </p><p><br /> Dappy was missing from the line-up after the Orange RockCorps event on Friday night.<br /> </p><p><br /> "Dappy has been a naugty boy," said singer Tulisa.<br /> </p><p><br /> "Well, he hasn't been naughty, he's gone to pick up his kid, he didn't know there were any interviews," she added.<br /> </p><p><br /> It comes just weeks after Dappy missed the Mobo nominations event in London after getting stuck in Greece.<br /> </p><p><br /> There was speculation the other members were upset, but Fazer blasted the rumours as rubbish.<br /> </p>
