Grammys Adele and Lady Gaga Hang Out Backstage at the GRAMMYs -- See the Adorable Instagram! By John Boone 9:50 PM PST, February 12, 2017 This video is unavailable because we were unable to load a message from our sponsors. If you are using ad-blocking software, please disable it and reload the page. Embed CodeRestart Now playing What's the exact opposite of performing with Metallica? Probably this. Lady Gaga and Adele hung out together backstage at the GRAMMYs on Sunday, sometime after Gaga's glitchy heavy metal debut and sometime between Adele sweeping every category she was nominated in and performing two and a half times and making Beyoncé cry. View this post on InstagramA post shared by Lady Gaga (@ladygaga)"This one," Gaga captioned the photo. "killin it tonight like girls do" WATCH: Adele Drops F-Bomb After Briefly Stopping George Michael Tribute, Still Delivers Powerful PerformanceThis isn't two divas passing in the night -- Gaga and Adele have been friends for a while, even sparking pre-25 and pre-Joanne rumors that the two were collaborating on music together after Gaga shared a selfie from their "bro-down." View this post on InstagramA post shared by Lady Gaga (@ladygaga)Adele also recently gushed about Gaga's Super Bowl halftime show, Instagramming a shot of TV screen and writing, "Lady you SMASHED it! Totally nailed it" View this post on InstagramA post shared by Adele (@adele)Now, back to those collaboration rumors. Can we get something on the books for 2017? EXCLUSIVE: Watch Celine Dion and Lady Gaga Adorably Fan Out Over Each Other on GRAMMYs Red Carpet This video is unavailable because we were unable to load a message from our sponsors. If you are using ad-blocking software, please disable it and reload the page. Embed CodeRestartRelated Gallery2017 GRAMMY Winners – See the Stars With Their Awards!