Comedy legends Robin Williams, Joan Rivers and Rowan Atkinson performed a thrilling show on Wednesday to celebrate British royal Prince Charles' 60th birthday.

Monty Python legend John Cleese and the actor at the center of Russell Brand's controversial prank phone call saga, Andrew Sachs, also appeared at the event to mark the Prince's milestone birthday.

Williams and British comedian Bill Bailey bravely poked fun at the future British monarch in a surprise duet, singing "Your momma ain't goin' anywhere, she's gonna hang on to that crown", in reference to Queen Elizabeth II's 56-year long reign as the head of the British state.

Earlier this week Williams performed at a student night at the British capital's London School of Economics (LSE) - marking his return to the U.K. stand-up scene after a 25-year absence.

(This news article provided by World Entertainment News Network)