Tulisa 'X Factor' role sparks N-Dubz split rumours

N-Dubz are rumoured to be on the verge of splitting.

The 'Girls' group are said to have fallen out over singer Tulisa's appointment as a judge on UK TV show 'The X Factor', which rapper Dappy feels is taking her focus off the band, leading him to sign with a new management company to launch his solo career.