Oscars 2019: Lady Gaga, Bradley Cooper perform 'Shallow' from A Star Is Born

HOLLYWOOD, CALIFORNIA - FEBRUARY 24: (L-R) Lady Gaga and Bradley Cooper perform onstage during the 91st Annual Academy Awards at Dolby Theatre on February 24, 2019 in Hollywood, California. (Photo by Kevin Winter/Getty Images)
Photo credit: Getty

Lady Gaga and Bradley Cooper delighted fans when they took to the stage at the 2019 Academy Awards to perform hit song 'Shallow' from A Star Is Born.

The pair walked onstage together, arm-in-arm, and maintained very intense eye contact while they sang.

At the conclusion of the performance it looked for a moment as if the two might share a kiss, but instead they simply smiled sweetly at one another. 

Rumours of a budding romance between the pair have been swirling ever since audiences witnessed their chemistry on-screen and during the subsequent press rounds.

A representative for Gaga last week confirmed she had recently ended her engagement with Christian Carino, adding fuel to the gossip fire.

It's not the first time the pair has performed the song live - earlier this year, Gaga brought Cooper up on stage for the duet during a show in Las Vegas.

The performance was filled with intimate embraces and lingering eye contact, sending fans into a frenzy.

Cooper later admitted it was "terrifying" to sing to a live audience, and that he was extremely nervous about his much-anticipated Oscars performance.

"I couldn't sing before this movie and so, in terms of being able to sing in front of people, it's very nerve-racking," he told E! News. 

"It's not easy what they do."

As well as performing, Cooper and Gaga are both nominated for Oscars this year for A Star Is Born.

Cooper is up for Best Actor, Adapted Screenplay and Best Picture - as a producer, having been noticeably snubbed from the Best Director category - while Gaga is nominated for Best Actress.