VIDEO : Benedict Cumberbatch Sang On Stage With Pink Floyd's David Gilmour

Watch out, people, Benedict Cumberbatch is here to party! The Hollywood actor surprised an arena full of David Gilmour fans Wednesday night when he decided to hop on stage at Royal Albert Hall in London and debut his singing skills by belting Pink Floyd's "Comfortably Numb" with the group's former member. When he's not hitting some notes in front of thousands on stage, he's asking the hard-hitting questions to fellow Hollywood stars.