Lady Gaga's Vegas audience were in a for huge surprise last night when she invited Bradley Cooper on stage. This could mean only one thing - surely the pair would have to do their duet from A Star Is Born?
Sure enough, the co-stars of the hit film soon had the crowd ecstatic with joy when they performed the film's song 'Shallow' as the closing number of her 'Enigma' show.
The moment was captured on video by a member of the audience, with footage showing the pair embracing before Gaga settled at a piano and Cooper took his spot next to her.
When Cooper joined her on stage, Gaga explained that she'd provided monitor speakers so the actor would be able to hear himself on stage, telling him: "I even got you in-ears."
In response, Cooper joked he couldn't hear anything as he'd never used in-ears before that point.
Before they kicked off the song, Cooper seemed excited to be living out any rock star fantasies he may have harboured, cheerily shouting: "Hello Vegas!"
As you'd expect, the audience reacted hugely to the duet, taking to Twitter to express their excitement.
One person tweeted: "Tonight I saw Bradley Cooper sing Shallow with Lady Gaga so honestly....I win. I apologise for anyone who wasn't there."
"Petition for Lady Gaga & Bradley Cooper to actually go on tour together," another responded.
Another post simply read: "Music To my eyes by Bradley Cooper x Lady Gaga."
Some people praised the duo's on-stage chemistry, as summed up by the tweet: "Find someone who looks at you the way Bradley Cooper looks at Lady Gaga."
Thanks to the film, which was directed by Cooper, Gaga has been nominated for her first Oscar and has become the first artist to be nominated for Best Actress and Best Original Song in the same year.
Bradley Cooper and Lady Gaga in 'A Star Is Born'. Credit: Warner Bros.
A Star is Born is the third remake of the original 1937 flick, having been previously adapted for a 1954 musical starring Judy Garland and James Mason, and a 1976 rock musical with Barbra Streisand and Kris Kristofferson.
Speaking to LADbible last year, Cooper said: "It was one of the great experiences artistically I've ever had, and oddly natural. I had the privilege of working with so many great artists in this film."
Featured Image Credit: Youtube/GagaDaily