The "Die Hard" star's loving wife Emma Heming was present.
The couple posed together in the photobooth and blew out the candles on his chocolate cake, reported Us magazine.
Heming, 36, shared photos from the event with the label "Bee Dub's 60th" on Instagram, writing, "It's fair to say the birthday boy had a great time. #BWBirthdayBash."
Willis' other celebrity guests included Patti Hansen, Keith Richards, and Tony Bennett.