The line-up has been confirmed for the 2016 WhatsOnStage Awards which take place on 21st February at the Prince of Wales Theatre.
Hosts Mel Giedroyc and Steve Furst will kick off the evening by performing an original song called 'The Greatest Show of All'.
Later in the evening Pixie Lott will sing 'Moon River' ahead of starring in Breakfast at Tiffany’s.
The line-up also includes Jenna Russell who will perform a number from Grey Gardens whilst Emma Williams and Tracie Bennett will treat the audience to a duet from Mrs Henderson Presents.
Elsewhere there will be performances from Alison Jiear (Xanadu/Britain’s Got Talent), Amelia Lily (American Idiot/Joseph) and Alexis Gerred (American Idiot/Dreamboats & Petticoats).
Finally, the incomparable Matt Henry is set to close the show with a rendition of 'Hold Me in Your Heart' from the West End's hottest new must-see musical Kinky Boots.