16 photos of Lady Gaga and Bradley Cooper's emotional Oscars night that prove the duo's chemistry is real

Bradley Cooper and Lady Gaga shared a number of sweet moments at LA's Dolby Theatre on Sunday during the 2019 Oscars .
Both were nominated for their lead roles in "A Star Is Born."
They also gave an intimate performance of the film's main duet "Shallow," which won the Oscar for best original song.
Throughout the emotional evening, fans swooned over the duo's natural chemistry.

Bradley Cooper and Lady Gaga shared a number of sweet moments at LA's Dolby Theatre on Sunday during the 91st annual Academy Awards.

Although neither took home an Oscar for their lead roles in "A Star Is Born" which was also nominated for best picture, but lost to the controversial "Green Book" the film was rightfully praised for its original song , the smash hit "Shallow." (You can see a full list of the winners here .)

Cooper and Gaga also gave an intimate performance of the award-winning duet , which reignited fans and critics' appreciation for the duo's natural chemistry .

Here's a roundup of the best photos from the two actors' emotional evening.

They walked onstage to perform "Shallow" hand-in-hand.

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It's traditional for the best original song nominees to perform at the Oscars although Kendrick Lamar and SZA turned down the opportunity to perform "All the Stars" from "Black Panther."

Cooper began to sing as Gaga made her way over to the piano.

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She paused before sitting down, however, to watch her co-star croon the first verse.

Fans loved the way Gaga watched Cooper.

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The look is familiar for "A Star Is Born" fans: Gaga's character Ally is head-over-heels in love with Cooper's Jackson Maine.

He had a similar look of awe.

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The songstress already has multiple Grammys , including for "Shallow," but last night marked her first-ever win at the Oscars.

They got close as they performed the popular duet.

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They both continued to wear their classic, minimal, black-and-white outfits from the red carpet while onstage.

Their chemistry was on full display during the emotional performance.

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Gaga has repeatedly thanked Cooper for seeing her potential as an actress and casting her in the film , which he also directed.

Their intimate performance was beautiful from all angles.

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"Based on the internet reaction I think legally speaking Lady Gaga and Bradley Cooper have to get married and have a baby now or it's a felony," popular YouTuber Philip DeFranco wrote on Twitter .

The duo seemed touched by the audiences thunderous applause.

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The crowd was so impressed with the performance, Cooper and Gaga were given two separate standing ovations .

"I've never seen that happen for any performers," noted The Hollywood Reporter's Chris Gardner .

They embraced once the song was finished.

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Gaga has repeatedly gotten emotional performing "Shallow."

Cooper seemed a little relieved after the success of their performance.

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Although it was not the first time the duo had performed the song live , Cooper said he was nervous for his vocals to be on display at the Oscars.

"That was terrifying," Cooper previously told E! News about singing live with Gaga in Las Vegas. "I just had to, like, zen out and just pray that I wouldn't ruin her show. Because, think about it, she just crushed it for two hours... and I thought, 'Please let me just be on pitch.'"