The piano performance comes from the brilliant British talk show “The Jonathan Ross Show” where Hanks teamed up with Sandra Bullock to play Chopsticks on a giant piano, 25 years after he did the same thing in the iconic scene from the comedy Big.
See the fun clip featuring Tom Hanks and Sandra Bullock playing Chopsticks at “The Jonathan Ross Show” via Vulture:
Original scene from the 1988 film Big: