Cast members of the controversial show Jerry Springer - The Opera are to sing for charity at Chelmsford Cathedral.
Christian groups protested when the BBC screened the show
They are taking part in a concert to raise money for victims of the Boxing Day tsunami disaster.
Clergy at the Essex cathedral assured concert-goers that the cast would sing appropriate songs.
Religious groups had protested over a screening of the musical on BBC Two branding it "blasphemous".
Other stars from West End musicals, as well as singers from the Royal Opera House are to appear at the concert, entitled A New World, to raise funds for the tsunami appeal.
It will take place on Sunday 23 January at 1945 GMT, and will feature some well-known songs from the shows.
Stars include David Bedella, winner of the Olivier award for best actor in a musical in 2004, and fellow prize-winner Ben Lake.
The Bishop of Chelmsford, the Rt Rev John Gladwin, chairman of Christian Aid, is due to attend the concert.