Emma Stone tells David Letterman last Thursday that she and her mom are celebrating her mother's recovery from cancer by getting themselves tattoos, matching ones designed by Sir Paul McCartney.

The 21-year old Hollywood star and her mother went to dinner with Sir Paul McCartney. Letterman jokingly asked Emma if she knew The Beatles, to which the actress said "they had been around since the 80s."

She also said she could not believe to have been in the presence of Paul McCartney who at the time of the visit was making "veggie" burgers.

The Easy A actress wrote a letter to Paul McCartney asking him if he would draw two little bird feet after the song "Blackbird" which is the favorite song of Emma Stone's mother and which Paul McCartney wrote.

"Two years ago [my mother] got diagnosed with breast cancer," Stone told David Letterman.

"And she's out of the woods now, which is amazing. We've never gotten tattoos before, and probably never will again."

Watch Emma Stone's interview with David Letterman below: