Bradley Cooper joins Lady Gaga onstage for surprise performance of 'Shallow'

goss 28/01/2019

Hot off the back of their recent Oscar nominations for A Star is Born, Bradley Cooper has joined Lady Gaga on stage at her Las Vegas concert to perform their song 'Shallow' from the hit film.

The pair have a wee moment together as they reunite onstage before they start to sing - then the crowd goes crazy!

The video has already been viewed hundreds of thousands of times, check it out above.