Well the N-Dubz rapper certainly had a lot to smile about last night as his debut single No Regrets stormed in to pole position in the UK single charts after fighting off stiff competition from One Direction and Jason Derülo.

The rapper decided to make it a night to remember by hosting a posh bash for all his mates including N-Dubz band members and X factor judge Tulisa Contostavlos and her boyfriend Fazer.

It was a rare public show of togetherness from Tulisa and her beau Fazer who’ve only recently admitted that they’ve been seeing each other for about a year.

But the high-profile couple wanted to keep their relationship under wraps because they didn’t want the pressure of going public get in the way of their work.

Last night was an exception though as the couple put on one of their first real show in front of the cameras of being ‘in’love’ with each other while they helped Dappy throw some  mega-happy shapes on the dancefloor to celebrate his massive UK chart glory.

Also at Dappy’s celebratory event at Movida in Central London was Tinchy Stryder, Chipmunk and late soul-singer Amy Winhouse’s god-daughter Dionne Bromfield.

The Camden based talented trio N-Dubz formed 12-years-ago and have denied rumours that the band is splitting. They are however, taking time-out while Tulisa works as judge and mentor for her band acts on the UK X factor singing competition.