Dreamgirls' Amber Riley performs amazing rendition of 'And I Am Telling You' - WATCH

She sang 'And I Am Telling You I'm Not Going' as Mercedes Jones in the smash hit musical comedy Glee, and now actress Amber Riley has done it again but as herself. Riley made an appearance on The Graham Norton Show on Friday (October 7) and performed a stunning rendition of 'And I Am Tell You I'm Not Going'. Is it better than the Glee version? Of course it is! Amber Riley is set to bring Effie to the West End in the first ever London production of Dreamgirls and this mesmerising performance is just a sneak preview of the upcoming show. You can watch Riley's stunning performance below: Dreamgirls will run at The Savoy Theatre (Strand, WC2R 0ET) from November 2016. For more information and tickets, visit http://tickets.attitude.co.uk/tickets/dreamgirls. More stories: Table for Two | ‘My stepdad would get on better with him’ Gay love in America’s Bible Belt explored in new LGBT series ‘Feral’ – WATCH