Turning 22 had a sweet ending for Arcidiacono, whose free throws sealed the Wildcats' victory over Kansas Saturday night in the Elite Eight.
PHOTOS: Villanova celebrates Elite Eight victory
Teammates and fans even serenaded the Langhorne, Bucks County native by singing "Happy Birthday" during the on-court celebration.
"It was great. It was something that wasn't expected. I don't want to take any focus away from the team. I think it's a whole team effort, but it was an unbelievable birthday and I'll never forget it," Arcidiacono told Action News' Jeff Skversky.
Arcidiacono said this was the first time he played on his birthday.
Villanova faces Oklahoma in the Final Four in Houston next Saturday.
The Associated Press contributed to this report.