Cranberries singer Dolores O'Riordan plans to contribute vocals to AC/DC frontman Brian Johnson's musical play version of 'Helen of Troy'.

Billboard says that Johnson hopes to debut the play in London later this year.

He has written the music and lyrics with composer Brendan Healy.

According to the Cranberries' official website, O'Riordan has yet to hear the finished songs.

She has also been working on some solo material.