When is Olivia O'Brien's birthday?

Olivia O'Brien was born on November 26, 1999.

What is Olivia O'Brien's zodiac sign?

Olivia O'Brien is a Sagittarius, born November 26, 1999.

What is Olivia O'Brien's Chinese zodiac sign?

Olivia O'Brien was born in 1999, the year of the Earth Rabbit.

Where is Olivia O'Brien from?

Olivia O'Brien is from United States.

Where was Olivia O'Brien born?

Olivia O'Brien was born in Thousand Oaks, United States.

What is Olivia O'Brien's real name?

Olivia O'Brien's real name is Olivia Gail O'Brien.

Where did Olivia O'Brien go to school?

Olivia O'Brien attended Justin-Siena High School.

Is Olivia O'Brien still alive?

Yes — Olivia O'Brien is alive and 26 years old.

What is Olivia O'Brien's life-path number?

Olivia O'Brien's numerology life-path number is 11, derived from November 26, 1999.

BORN NOVEMBER 26· Singers Sagittarius

OO

Olivia O'Brien, 1999

Singers · November 26, 1999

Olivia O'Brien

aka Olivia Gail O'Brien

Singers United StatesEarth Rabbit★ THOUSAND OAKS

AGE26

BORNNov 26

★ UP NEXT

More like this

★ Next birthday129days · turns 27

0BOOSTS

★ HOW OLD IS OLIVIA O'BRIEN?

Olivia O'Brien is 26 years old, born November 26, 1999 in Thousand Oaks · Sagittarius.

#331of 1,805 Singers on HotBirthdays

★ QUICK FACTS

The basics

★ REAL NAME: Olivia Gail O'Brien
★ BORN IN: Thousand Oaks
★ EDUCATED AT: Justin-Siena High School

★ LEDE

About

Olivia O'Brien broke through in 2016 with "I Hate U, I Love U", a collaboration with Gnash that hit number 10 on the Billboard Hot 100 and number one in Australia. Born November 26, 1999, in the US, she's a singer and songwriter. The single's success landed her a deal with Island Records, where she released EPs, mixtapes, and her debut album Was It Even Real?. As a Sagittarius, she channels restless emotional honesty into her sound.

★ FEATURE

Biography

Olivia O'Brien rose to fame in 2016 after collaborating with Gnash on the single "I Hate U, I Love U", which peaked at number 10 on the Billboard Hot 100 in the United States and reached number one in Australia. Born November 26, 1999, O'Brien is an American singer, songwriter, and actress. The breakthrough collaboration's success earned her a recording contract with Island Records, the label through which she released two extended plays, three mixtapes, and her debut studio album Was It Even Real?. As a Sagittarius born in late November, she embodies the sign's directness and emotional intensity—traits evident in her confessional songwriting. Singers and singer-songwriters typically record original material, perform live, and collaborate across genres. Based in the US, O'Brien emerged during the late 2010s streaming era when viral collaborations could launch careers overnight.

★ SIDEBAR

Trivia

"I Hate U, I Love U" reached number one in Australia while peaking at number 10 on the US Billboard Hot 100.
O'Brien signed with Island Records following the success of her breakthrough Gnash collaboration.
Her debut studio album Was It Even Real? arrived in 2019, following two EPs and three mixtapes.

★ HIGHLIGHTS

Career timeline

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- NOMINATEDiHeartRadio Music Awards

★ SIDEBAR

Numerology

11

LIFE-PATH NUMBER

Master Number — The Visionary

11 carries the qualities of 2 amplified. Highly intuitive, often associated with thought leaders and trend-setters in their fields.

★ ALL LIFE-PATH 11 CELEBS →

★ ASTROLOGY

Birthday compatibility

By Chinese zodiac — san-he trine for best matches, opposing pair for the most friction-prone.

HIGHLY COMPATIBLE

Nick RobinsonPig · 1995
Brian GutiérrezGoat · 2003
Nicola PeltzPig · 1995
Kendall JennerPig · 1995
Brian MayPig · 1947

CHALLENGING

Patrick MöllekenRooster · 1993
Ewa FarnaRooster · 1993
Hannah MarksRooster · 1993
Sebastian de SouzaRooster · 1993
David DorfmanRooster · 1993

Compare Olivia O'Brien side-by-side at /compare/<a>-vs-<b>.

★ FAQ

Frequently asked

How old is Olivia O'Brien?: Olivia O'Brien is 26 years old (born November 26, 1999).
When is Olivia O'Brien's birthday?: Olivia O'Brien was born on November 26, 1999.
What is Olivia O'Brien's zodiac sign?: Olivia O'Brien is a Sagittarius, born November 26, 1999.
What is Olivia O'Brien's Chinese zodiac sign?: Olivia O'Brien was born in 1999, the year of the Earth Rabbit.
Where is Olivia O'Brien from?: Olivia O'Brien is from United States.
What does Olivia O'Brien do?: Olivia O'Brien is a singer.
Where was Olivia O'Brien born?: Olivia O'Brien was born in Thousand Oaks, United States.
What is Olivia O'Brien's real name?: Olivia O'Brien's real name is Olivia Gail O'Brien.
Where did Olivia O'Brien go to school?: Olivia O'Brien attended Justin-Siena High School.
Is Olivia O'Brien still alive?: Yes — Olivia O'Brien is alive and 26 years old.
What is Olivia O'Brien's life-path number?: Olivia O'Brien's numerology life-path number is 11, derived from November 26, 1999.

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