Which of the Beatles had a mustache?

When The Beatles first rose to fame in the 60's none of them had a mustache. In 1967, Paul had an accident on a scooter and chipped a tooth - to hide the chip, he grew a moustache. All the other Beatles copied him, as well as their two road managers (Mal and Neil). As someone said at the time; "they're all growing moustaches - even Yoko's trying!"