Simon Cowell, David Walliams, Amanda Holden and Alesha Dixon will all be back for the reality show's seventh series, along with hosts Ant & Dec.
This year's audition tour visits five cities across 11 dates in January and February.
Dancing dog act Ashleigh and Pudsey won the 2012 series of the show and have gone on to become TV stars around the world.
Judges audition dates in full:
January 16-17 - Millennium Centre, Cardiff
January 20-23 - The London Palladium, London
January 28 - Clyde Theatre, Glasgow
February 2-3 - Lowry Theatre, Manchester
February 8-10 - The ICC, Birmingham.