Most of the time, when you think of your 21st birthday, you think of drinking-related fun or alcohol-themed activities. That said, there are many more ways to celebrate turning 21 than hanging out ...

The Golden Globe winner, 67, and his wife Jessica Seinfeld celebrated their daughter Sascha 's 21st birthday Sunday night with a 1920s-themed party. "We are parents of a 21 year old!" ...

Just 50 photos of celebrities partying on their 21st birthdays—from Paris Hilton, to Lindsay Lohan, to Sophia Loren, to Paris Hilton (again... and again).

Leiah Abellera tells PEOPLE how although she might be growing older, for her 21st birthday party, she wanted to take her guests on a trip down memory lane with a Disney Channel premiere theme.