The Voice judges Jessie J, Sir Tom Jones, Danny O'Donoghue and Will.i.am reunite for second series

Coaches Danny O'Donoghue, Sir Tom Jones, Jessie J and will.i.am at the launch of latest series for the BBC talent show, The Voice, at the Soho Hotel in London. (PA)

The Voice coaches were all smiles today when they reunited for the second series of the BBC1 show.

Jessie J, Sir Tom Jones, Danny O'Donoghue and Will.i.am are back as rivals for the talent show.

Last year's winning coach Sir Tom smiled for the cameras while looking dapper in a tie, matching waistcoat and jacket.

The Script frontman O'Donoghue gave photographers a victory sign, showing he intends to find a winning act in the show, which is due to start soon.

Will.i.am donned studded gloves and his trademark sunglasses and Jessie J wore a black shirt dress and strappy heels as they promoted the series in a London hotel.

BBC bosses have brought back the talent show with new twists, after ratings dropped during the first series following the end of the "swivel chair" rounds.

An 11-date tour, featuring performances by the show's finalists, was cancelled following poor ticket sales.

But the celebrity judges appeared confident today as they walked the red carpet to promote the show.

The debut programme was won by Leanne Mitchell, who had been coached by Sir Tom.

She won a recording deal with music giant Universal but a download version of her debut single failed to make a big dent on the charts.