Jessie J, Will.i.am, Tom Jones and Danny O’Donoghue are all set to return to The Voice UK for a second series – although BBC chiefs have revealed the format of the show will undergo a shake-up.

Speaking at the Edinburgh International TV Festival, BBC One’s Danny Cohen said they were keen to get the foursome back on board when the show returns next Spring.

“We haven’t signed any contracts yet but we want them all back,” he said. “We were really happy with them.”

His remarks appeared to be echoed by Jessie J, who took to her Twitter page on Friday to confirm she would be returning to her spinning chair for a second series.

“I will be a coach on the 2nd series of The Voice UK,” she told her followers, adding, “I’m B B B BACK!”

However BBC entertainment chief Mark Linsey added that there would be changes to the show, which had a strong start in the ratings during the ‘blind auditions’ stage, in which the judges spun their chairs round for acts they liked – but lost almost half its audience during the live shows.

“It’s not rocket science to say the spinning chairs were the best bit,” said Linsey – who suffered a brief moment of embarrassment when he struggled to remember the name of series winner Leanne Mitchell, referring instead to “Leanne…with the beautiful, beautiful voice.”

He added that the series would feature more audition rounds and less live shows next year.

“Those live shows, the audience became over familiar with the grammar,” he said. “It still works on Strictly and X Factor, but audiences became too familiar with it.”

Other reports have suggested that a new twist in series two will allow coaches to ‘poach’ acts from each other – something previously been used in the US version of the show.