You Won't Believe All These Stars Turn 21 This Year

Updated on March 12, 2015 at 7:30 AM

Young Hollywood isn't quite so young anymore. This weekend, Ansel Elgort turns 21, joining the ranks of several other celebrities who reach the milestone this year. Justin Bieber will continue his 21st birthday festivities later this month with his Comedy Central Roast, and after growing up on screen for more than a decade, Dakota Fanning celebrated the big 2-1 earlier this year. Ahead of Ansel's birthday, take a look at some of the famous actors and musicians who turn 21 in 2015, and then check out the hotties turning 30 this year and the best dressed stars under 21!

Harry Styles

One Direction's Harry Styles turned 21 on Feb. 1.

Dakota Fanning

After so many years of watching Dakota Fanning on the big screen, it's hard to believe the actress only recently turned 21 on Feb. 23.

Justin Bieber

Justin Bieber embraced the big 2-1 in a big way on March 1, and the celebration will continue with his upcoming Comedy Central Roast.

Saoirse Ronan

The Lovely Bones and The Grand Budapest Hotel actress Saoirse Ronan will turn 21 on April 12.

Ellar Coltrane

After filming Boyhood from age 7 though 19, actor Ellar Coltrane will turn 21 on Aug. 27.

Lorelei Linklater

Ellar Coltrane's Boyhood costar Lorelei Linklater turns 21 on May 29.

Tom Daley

British diver Tom Daley will celebrate his golden 21st birthday on May 21.

Zoey Deutch

Vampire Academy's Zoey Deutch will celebrate the big 2-1 later this year on Nov. 10.

Nat Wolff

Ansel Elgort's The Fault in Our Stars costar Nat Wolff turns 21 on Dec. 17.

Morgan Saylor

Homeland actress Morgan Saylor will celebrate her 21st birthday on Oct. 26.

Jake T. Austin

On Dec. 3, The Fosters star Jake T. Austin will turn 21.

Taissa Farmiga

American Horror Story's Taissa Farmiga will turn 21 on Aug. 17.

Skyler Samuels

On April 14, Skyler Samuels from American Horror Story and The DUFF will turn 21.

Ansel Elgort

Ansel Elgort reaches the big 2-1 on March 14.