Olivia Rodrigo joins Billy Joel on stage at Madison Square Garden to sing Deja Vu and Uptown Girl

Olivia Rodrigo references Billy Joel and his hit song Uptown Girl (1983) in her song Deja Vu, the second single off of her debut album, Sour (2021).

And on Wednesday night, the 19-year-old singer-songwriter found herself performing both tunes during Joel’s Madison Square Garden residency, which was his 82nd consecutive sold-out show at the famed New York City venue, according to Variety.

‘Hey, guys! Thank you so much for having me, Billy. I’m such a huge fan, and I kind of wrote this next song about you,’ Rodrigo revealed after being introduced to Joel’s loyal New York fans.

From there, she went into Deja Vu, which talks of heartbreak while exploring her anguish over a former partner who repeats things they had once done in his new relationship.

‘I bet she knows Billy Joel ’cause you played her Uptown Girl – You’re singing it together –  Now I bet you even tell her – How you love her – In between the chorus and the verse,’ the California native sings in the second verse of Deja Vu.

Looking youthful in a plunging black top, a brown patterned skirt, black leather boots and her dark brown locks flowing down to her waist, she later belts out during the live rendition: ‘Play her piano, but she doesn’t know that I was the one who taught you Billy Joel.’

The young star looked youthful in a plunging black top, a brown patterned skirt, black leather boots and her dark brown locks flowing down to her waist when she made her way on stage

Piano Man reference: The 19-year-old singer-songwriter went on to perform her song Deja Vu, which references Billy Joel and Uptown Girl in the second verse

Nod of respect: ‘I bet she knows Billy Joel ’cause you played her Uptown Girl – You’re singing it together – Now I bet you even tell her – How you love her – In between the chorus and the verse,’ the California native sings in the second verse of Deja Vu

Another Joel reference: Rodrigo would later belt out the lines: ‘Play her piano, but she doesn’t know that I was the one who taught you Billy Joel’

After Deja Vu, the moment was the perfect time for the pair to do a duet of Uptown Girl, which appeared on Joel’s ninth studio album, An Innocent Man (1983).

Uptown Girl peaked at number three on the Billboard Hot 100 for five consecutive weeks in November and December of 1983, which was 20 years before Rodrigo was born.

In comparison, Deja Vu debuted at number eight on the US Billboard Hot 100 in April 2021, and also went on to peak at number three on the chart by the time Sour dropped two months later.

Perfect transition: After performing Deja Vu, the pair went into Joel’s hit song Uptown Girl

Uptown Girl peaked at number three on the Billboard Hot 100 for five consecutive weeks in November and December of 1983, which was 20 years before Rodrigo was born

It’s deja vu: Rodrigo’s Deja Vu would also peak at number three on the Billboard Hot 100

Only the beginning: The teenage star earned seven Grammy nominations and three wins with her debut studio album, Sour

Rodrigo wrote Deja Vu with her Sour producer Dan Nigro. Taylor Swift, Jack Antonoff, and St. Vincent, otherwise known as Annie Clark, are also credited with songwriting credit due its retroactive interpolation of Swift’s song Cruel Summer (2019).

During their time onstage, the blossoming teenage star showed her fandom for the Piano Man a number of times by pointing at him while delivering her references to him, and again while singing Uptown Girl.

The pair would go on to share a warm embrace after performing the two songs.

Rodrigo wrapped her tour in support of Sour, which began in the U.S. on April 5, with two shows at Eventim Apollo in London, England on July 6-7.

During their time onstage, the blossoming teenage star showed her fandom for the Piano Man a number of times by pointing at him while delivering her references to him, and again while singing Uptown Girl 

Fandom: Rodrigo let the audience know that she too has been a huge Billy Joel fan

Sweet: The two star shared a warm embrace at the end of the two songs

 New York state of mind: The show on Wednesday was Joel’s 82nd consecutive sold-out show at the famed Madison Square Garden in New York City

Among her accolades for Sour, were seven Grammy Award nominations that resulted in three wins, including Best New Artist, Best Pop Vocal Album and Best Pop Solo Performance for her song Drivers License.

Embarking on his musical career in the mid-1960s, Joel moved on as a solo artist the following decade, ultimately releasing 12 studio pop and rock albums full of hits from 1971 to 1993.

With over 160 million records sold worldwide, Billy Joel is considered one of the best-selling musical artists of all time as a solo artist.

Smashing success: Rodrigo just wrapped her tour in support of her debut album, Sour, which began in the U.S. on April 5, with two shows at Eventim Apollo in London, England on July 6-7.

Iconic: With over 160 million records sold worldwide, Billy Joel is considered one of the best-selling musical artists of all time as a solo artist