[4] After graduating, Stemp performed in Wicked in London's West End[5] and was cast as Eddie in the international tour of the musical Mamma Mia!.
[7] Stemp appeared as the lead actor in Sir Cameron Mackintosh’s production of Half a Sixpence, written by Julian Fellowes.
[8] In October 2016, the musical transferred to the Noël Coward Theatre in the West End, and extended its booking to 2 September 2017.
[9] Stemp appeared on Broadway in the revival of Hello, Dolly!, starting on 20 January 2018, officially on 22 February 2018, as Barnaby Tucker.
As one reviewer remarked, "Bert pulls off the impossible – tap-dancing upside down from one end of the proscenium arch to the other.