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Billie Eilish Pays Tribute to Britney Spears at 2019 Jingle Ball

Perhaps Billie Eilish was returning the favor; Earlier this year, Britney Spears honored the teen with her own tribute.

By Mike Vulpo, Corinne Heller, Alli Rosenbloom 07 Dec, 2019 5:35 PMTags
Watch: Billie Eilish on Her First Ever Award Show Performance

Oh baby, baby! At iHeartRadio's 102.7 KIIS FM 2019 Jingle Ball on Friday, Billie Eilish paid tribute to none other than Britney Spears.

The 17-year-old singer wore a T-shirt and basketball shorts bearing the teen pop princess-turned-queen's likeness and name while performing at the event, which took place at the Forum in Inglewood, California. Gen-Zer Billie may be unfamiliar with Van Halen and Hilary Duff, but she knows and loves her Britney.

Perhaps Billie was simply returning the favor; In June, Britney posted on Instagram a video of herself dancing to Billie's "Bad Guy" while recreating her iconic "I'm a Slave 4 U" choreography from the 2001 MTV VMAs. The teen, who was born three months after that ceremony, commented, "OMG."

The Jingle Ball took place less than two weeks before Billie turns 18.

"I think it's really hard to navigate your teens and let alone navigate them as a person with a lot on their plate, with a lot to do. I think she's done it incredibly well and I'm just really proud of her," her brother, fellow musician, songwriter and producer Finneas O'Connell told E! News exclusively at the show. "I couldn't imagine a person turning 18 with more to be proud of."

Billie was also jointed at the event by her parents.

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Other performers at KIIS-FM's Jingle Ball included Camila CabelloLizzoKaty PerryBTS with special guest HalseySam Smith with special guest Normani and Louis Tomlinson, who replaced French Montana, who was recently hospitalized over concerns for his cardiovascular health, and is now on bed rest.

Lizzo stepped on stage wearing a pair of Daisy Dukes and a Santa-like coat.

"Close your eyes and say, 'I love you, me,'" she told the crowd. "Now look at me and say, 'I love you, Lizzo. Now this is a very no judgment crowd, no shame in your game. If you want to wiggle, I want to see you wiggle. If you want to laugh, then laugh. If you want to scream, scream!"

Later in her set, she told the crowd, "Thank you for accepting me for who I am. I want to let you know that if 20,000 people can accept me for who I am, the whole world can fall in love with you."

Celebrity attendees included Jamie Foxx, former Real Housewives of Orange County star and newly single Meghan King Edmonds—who attended with a girlfriend, Real Housewives of Beverly Hills stars Kyle Richards and Teddi MellencampThe Bachelorette alum Hannah BrownThe Bachelor alum Chris Soules, Bachelor Nation couples Caelynn Miller-Keyes and Dean Unglert and Ashley Iaconetti and Jared Haibon, plus Jason Priestley and Sarah Michelle Gellar.

Taylor Swift

The singer celebrates her 30th birthday onstage at Z100's Jingle Ball at Madison Square Garden in NYC.

Camila Cabello

The singer performs at Z100's Jingle Ball at Madison Square Garden in NYC.

Lizzo

The star performs at Z100's Jingle Ball at Madison Square Garden in NYC.

Jason Sudeikis & Olivia Wilde

The married couple appears at Z100's Jingle Ball at Madison Square Garden in NYC.

Jonas Brothers

The trio performs at Z100's Jingle Ball at Madison Square Garden in NYC.

Niall Horan

The singer performs at Z100's Jingle Ball at Madison Square Garden in NYC.

Drew Barrymore

The actress appears at Z100's Jingle Ball at Madison Square Garden in NYC.

Lizzo & Katie Holmes

The two appear together at Z100's Jingle Ball at Madison Square Garden in NYC.

Dan + Shay

The two perform at Z100's Jingle Ball at Madison Square Garden in NYC.

Lizzo

While rocking the red carpet, the "Good as Hell" singer sported scünci's limited edition "Kira Kira" crystal headband. 

Halsey

The singer performs at Z100's Jingle Ball at Madison Square Garden in NYC.

Tina Fey & Reneé Rapp

The two appear onstage at Z100's Jingle Ball at Madison Square Garden in NYC.

Gigi Hadid

The model arrives at Z100's Jingle Ball at Madison Square Garden in NYC.

Taylor Swift

The singer performs at Z100's Jingle Ball at Madison Square Garden in NYC.

Martha Hunt

The model arrives at Z100's Jingle Ball at Madison Square Garden in NYC.

Sam Smith

One word: iconique.

Lizzo

Take a bow! The "Good as Hell" singer looks effortlessly elegant in her larger-than-life ensemble.

Billie Eilish

2020 vibes.

Katy Perry

The singer performs at 101.3 KDWB's Jingle Ball 2019, presented by Capital One, at Xcel Energy Center in St. Paul/Minneapolis, Minnesota.

Billie Eilish

The "Bad Guy" songstress looks like she's enjoying herself!

Lizzo

Behind-the-scenes moment!

Camila Cabello

The "Shameless" songstress is looking red hot, hot, hot.

Normani

The pop princess makes everyone green with envy with her bright lime ensemble.

Billie Eilish

The 17-year-old star waves to the crowd.

Katy Perry

Pretty in pink! The pop star is all smiles after her epic performance.

Finneas O'Connell

The songwriter makes his way to event.

Billie Eilish

The singer pays tribute to Britney Spears

Billie Eilish

The singer walks the carpet.

Katy Perry

The singer takes the stage.

Lizzo

The singer rocks the crowd.

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View More Photos From 2019 Jingle Ball: Star Sightings

The singers showed each other much support; Lizzo bopped her head to BTS' music. Halsey danced, sang along and air-drummed to Katy's performance of "Firework." Louis danced backstage to Camila's performance of "Havana."