Pop group Frankie Goes to Hollywood are auditioning for a new frontman to perform with them in front of the Prince of Wales.
Frankie Goes To Hollywood reunited earlier this year for a one-off gig
The band, whose 1983 hit Relax was banned by the BBC, are re-forming to play a one-off Prince's Trust concert at Wembley Arena in November.
But Holly Johnson, the original flamboyant frontman, has refused to take part.
The open auditions will be held in London on Sunday 31 October.
Original band members Paul Rutherford, Peter "Ped" Gill and Mark O'Toole said they were looking for "new raw talent, girls or boys, young or old" to take Johnson's place.
The chosen singer will get to perform one of Frankie Goes To Hollywood's massive hit singles, which include Relax, Two Tribes or Welcome To The Pleasuredome.
The remainder of their set will be sung by an established surprise vocalist to be announced on the evening.
The chosen singer will replace Holly Johnson
Frankie Goes to Hollywood split in 1987 and Johnson fell out with producer Trevor Horn, who is organising the concert.
Frankie Goes To Hollywood's first reunion after 17 years came in an April concert organised by music TV channel VH1.
Johnson turned up - but did not take part. Brian "Nasher" Nash is also not involved in the new concert.
The show, on 11 November, will celebrate Horn's 25 years in the business and raise money for The Prince's Trust.
Other artists taking part include the Pet Shop Boys, Seal, Lisa Stansfield, ABC, Art of Noise and Belle and Sebastian.
Relax was banned by Radio 1 in 1983 because of its explicit lyrics, but went on to sell 13 million copies worldwide.
The auditions will be held in the Marquee Club in Leicester Square.