- Aries season is from March 21 through April 19.
- Those who are Aries are typically known to be bold and passionate.
- Lady Gaga, Kourtney Kardashian, Paul Rudd, and Chance the Rapper are all Aries.
- Visit Insider’s homepage for more stories.
Though January marks the start of the calendar year, Aries represents the start of the zodiac – and for the astrologically-inclined, that is every bit as significant.
Those born March 21 through April 19 fall under this sign, and are traditionally known to be bold, ambitious, unswerving, and passionate.
From Lady Gaga to Chance the Rapper, we’ve rounded up celebrities that you might not have realized were Aries.
Matthew Broderick
The “Ferris Bueller’s Day Off” actor was born March 21.
Scott Eastwood
The "Suicide Squad" actor was born March 21.
Reese Witherspoon
The "Legally Blonde" actress was born March 22 (and is not a Gemini vegetarian like her character in the movie is).
Jessica Chastain
The "Zero Dark Thirty" actress was born March 24.
Elton John
The "Rocket Man" crooner was born March 25.
Big Sean
The "Sacrifices" rapper was born on March 25.
Keira Knightley
The "Pirates of the Caribbean" actress was born March 26.
Steven Tyler
The Aerosmith frontman was born March 26.
Mariah Carey
The "Obsessed" singer was born March 27.
Lady Gaga
The "Joanne" singer was born March 28.
Reba McEntire
The country queen was born March 28.
Celine Dion
The "My Heart Will Go On" crooner was born March 30.
Ewan McGregor
The "Moulin Rouge" actor was born March 31.
David Oyelowo
The "Selma" actor was born April 1.
Eddie Murphy
The versatile comedian was born April 3.
Robert Downey Jr.
The "Iron Man" actor was born April 4.
Pharrell Williams
The "Happy" singer was born April 5.
Paul Rudd
The "Clueless" star and Marvel hero was born April 6.
Zach Braff
The "Scrubs" actor was born April 6.
Russell Crowe
The "Gladiator" actor was born April 7.
Jackie Chan
The popular "Rush Hour" star was born April 7.
Skai Jackson
The Disney Channel starlet was born April 8.
Robin Wright
The on-screen president from "House of Cards" was born April 8.
Dennis Quaid
The "Parent Trap" dad was born April 9.
Kristen Stewart
The "Twilight" star was born April 9.
Elle Fanning
The "Mary Shelley" actress was born April 9.
Mandy Moore
The talented "This Is Us" star was born April 10.
Saoirse Ronan
The "Ladybird" actress was born April 12.
Shannen Doherty
The "Charmed" actress was born April 12.
Ed O’Neill
The "Modern Family" actor was born April 12.
Abigail Breslin
The former "Scream Queens" star was born April 14.
Sarah Michelle Gellar
The on-screen vampire slayer was born April 14.
Emma Watson
The actress, who famously played Hermione Granger in the "Harry Potter" series, was born April 15.
Emma Thompson
The "Love Actually" actress was born April 15.
Chance the Rapper
The "No Problem" rapper was born April 16.
Akon
The "Smack That" singer was born April 16.
Jennifer Garner
The "I, Simon" actress was born April 17.
Kourtney Kardashian
The oldest Kardashian sister was born April 18.
Ashley Judd
The "Berlin Station" actress was born April 19.
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