Popsugar Celebrity Celebrity Friendships Ed Sheeran Singing Happy Birthday to Bruno Mars Ed Sheeran Serenaded Bruno Mars on His Birthday, and I'm Totally Shipping This New Bromance 9 October 2018 by Morgane Le Caer View this post on Instagram You know you’ve made it when you can hire Ed Sheeran to sing you Happy Birthday. 🍾🥂 #ExtraForever! #HappyBrunoMarsDay! A post shared by Bruno Mars (@brunomars) on Oct 8, 2018 at 5:02pm PDT You know you've made it when you can hire a celebrity to serenade you on your big day, and Bruno Mars seems to agree. On Monday, the "Uptown Funk" singer posted a hilarious video on his Instagram, which shows Ed Sheeran singing "Happy Birthday" with the help of his guitar. "Happy birthday to you, happy birthday to you, happy birthday dear two-time Super Bowl performing Bruno," sings Ed. Meanwhile, Bruno (who rang in his 33rd birthday) can be seen eating cupcakes in the backstage area of the Bridgestone Arena in Nashville, Tennessee, where he is continuing his 24K Magic World Tour. Related: 43 Celebrities Who Want to Be Taken Into Ed Sheeran's Loving Arms Back in August, Ed hinted at a new budding friendship and secret collaboration with Bruno during an interview with ET. "I was in the studio the other day with Bruno Mars. We know each other very well. We hang out . . . we hang out." So, where's that song at? View this post on Instagram You know you’ve made it when you can hire Ed Sheeran to sing you Happy Birthday. 🍾🥂 #ExtraForever! #HappyBrunoMarsDay! A post shared by Bruno Mars (@brunomars) on Oct 8, 2018 at 5:02pm PDT 1 / 3 View this post on Instagram Hosting a #24kmagicworldtour birthday celebration for @brunomars! 🎈🎁🎉😎 A post shared by Bridgestone Arena (@bridgestonearenaofficial) on Oct 8, 2018 at 2:32pm PDT 2 / 3 View this post on Instagram A post shared by Bruno Mars (@brunomars) on Feb 15, 2016 at 8:01pm PST 3 / 3 Celebrity FriendshipsEd SheeranCelebrity InstagramsBruno Mars