Amanda Holden, Alesha Dixon and David Walliams have confirmed they have signed up once again to join Simon Cowell as judges on TV hit Britain's Got Talent.

The quartet are to head out on tour from next week as they seek out contestants for this year's series which it returns in the spring, with Ant and Dec to be hosts of the ITV show once again.

Walliams, whose successful children's book career saw him achieve sales of £7 million for his four biggest alone last year, joked: "I am delighted to be back on the panel with the three girls."

It means the show will have had the same panel for four years, with Dixon and Walliams joining in 2012, while Cowell and Holden have been with the show since it launched in 2007.

Auditions begin at the Festival Theatre in Edinburgh on Monday.

Cowell said: "I feel very confident in my role as a judge on the show and I look forward to hopefully finding a star. Amanda is so much fun to work with and has great instincts. Alesha has proved to be a brilliant judge, has an amazing eye for talent and is a pleasure to be around. And, then there's David."

Holden said: "It will be brilliant to get back with all of the gang to catch-up, have some fun and I'm looking forward to getting into a lot of trouble with Alesha and making sure the boys are kept in order."

Dixon said: "The great thing about this show is that you never know what's going to turn up on the day."

Last year's series was won by singing group Collabro.

ends