After four years together, Bradley Cooper and Irina Shayk have decided to end their relationship. Mark Ralston / AFP / Getty Images According to People, the pair, who began dating in 2015, are now working together to figure out custody of their daughter, Lea De Seine. Jamie Mccarthy / Getty Images The news comes after Lady Gaga's own engagement to Christian Carino was called off in February. John Sciulli / Getty Images Why is that significant? Well, Gaga and Cooper both starred in A Star Is Born, which fueled some pretty intense rumours about them being in love. Warner Bros ESPECIALLY after their chemistry-filled performance of "Shallow" at the Academy Awards earlier this year. Kevin Winter / Getty Images Now before you go any further, Gaga did dispel these rumours while being interviewed on Jimmy Kimmel Live. ABC / Via youtube.com In regards to the Oscars performance, she said they were acting loved-up because they were performing a love song. ABC "Yes, people saw love, and guess what? That's what we wanted you to see." Fast-forward to news of Cooper and Shayk's breakup and, well, some fans have come to their own conclusions about what may or may not happen next. 👀 Media Critic @critical_media News: Bradley Cooper and Irina Shayk have broken up Anybody who watched the Oscars: 03:54 AM - 07 Jun 2019 Reply Retweet Favorite A.J. @ajhisnandez star is born stan twitter on their way to ship lady gaga and bradley cooper now that he and irina have called it quits 02:11 AM - 07 Jun 2019 Reply Retweet Favorite Boston Gay Boy 🏳️🌈 @BostonGayBoy Lady Gaga checking Bradley Cooper’s relationship status online and seeing that he’s now single 02:19 AM - 07 Jun 2019 Reply Retweet Favorite Lady Gaga Lately ♈ @AMENARTPOP a star is born (2018) dir. bradley cooper 05:08 PM - 04 Jun 2019 Reply Retweet Favorite Bowser @bowser_silva Bradley Cooper and Gaga are both single now. 02:57 AM - 07 Jun 2019 Reply Retweet Favorite kels @tmylmgaga lady gaga & bradley cooper are both single just 4 months after they eye fucked at the oscars how convenient 02:41 AM - 07 Jun 2019 Reply Retweet Favorite Kyla @kylamartinyoung Lady Gaga heading to Bradley Cooper’s house after hearing the break up news 02:42 AM - 07 Jun 2019 Reply Retweet Favorite Rob @RealityRobbed Lady Gaga showing up to a newly single Bradley Cooper's house: 03:01 AM - 07 Jun 2019 Reply Retweet Favorite Whatever happens, I'll be sitting here and watching it unfold on my timeline.