The pair will perform a song form the musical ”The Last Five Years”
Samantha Barks and Jonathan Bailey will perform at the 17th Annual WhatsOnStage Awards this weekend.
The pair performed together in The Last Five Years at the St James Theatre (now The Other Palace), and will perform a song from Jason Robert Brown's musical, which is nominated for Best Off-West End Production.
They will join the previously announced performers Amber Riley, Liisi LaFontaine, Gary Barlow, Joanna Riding, Tyrone Huntley, Ria Jones, Charlie Stemp and the cast of Half a Sixpence and the cast of School of Rock.
Vikki Stone and Simon Lipkin will present the ceremony which will be held at the Prince of Wales Theatre on 19 February. Tickets are now sold out.
Before the ceremony, star of the Rent UK tour and Eurovision hopeful Lucie Jones will present coverage from the red carpet on Facebook Live. The broadcast will begin between 6.15pm and 6.30pm, and you can watch on the day by clicking clicking here.
Click here to watch Matt Henry's guide to the WhatsOnStage Awards