London
Famous faces included Amber Riley, Billie Piper and Jamie Parker
The cream of Britain's stage and screen talent appeared on the red carpet at the Prince of Wales Theatre for the 17th Annual WhatsOnStage Awards.
Famous faces such as Amber Riley, Caroline Flack, Mark Gatiss, Billie Piper and Jamie Parker arrived to see who's won what at this year's event.
During this year's concert, Riley and Liisi LaFontaine, Tyrone Huntley, Ria Jones and the casts of Half a Sixpence and School of Rock all performed extracts from their shows.
Keep up to date with everything happening at tonight's awards on the WhatsOnStage Twitter and using the hashtag #WOSAwards.
Click here for our Facebook Live stream from the red carpet