Hugh Jackman performed a version of Who Am I from Les Miserables, which had been re-written to suit his Wolverine character. Check it out here.
The Australian actor played Jean Valjean in the 2012 adaptation of Les Miserables and got a chance to cross this role with that of his iconic X-Men character Wolverine while appearing on the Matt Edmondson Show on BBC Radio 1.
Edmondson had re-written the lyrics of Who Am I? for the skit naming the performance Wolverine – The Musical.