Talk about a star-studded selfie!

Katy Perry and Adele snapped a photo backstage during the "Roar" singer's tour stop in London on Wednesday.

The brunette beauty took to Instagram to share the sexy shot, writing, "...And on the 2nd LDN show the Queen graced me with her presence."

We have to say -- Adele is stealing the spotlight in this pic! The notoriously private singer looked stunning in a brimmed hat, a textured top and hoop earrings. 

The "Skyfall" songstress also tweeted after the show, writing, "Katy Perry was supreme tonight!" 

This isn't the first time that Adele has come out to support Katy. She made a brief appearance in Perry's 2012 documentary, "Part of Me," where she talked about the star's career. "A lot of albums do have a lot of filler tracks on them but every song on her album is a hit single," she said.

She's right!

Click "Launch Gallery" above to see more star selfies, and check out the photos below to see more pics from Katy Perry's Prismatic Tour. 


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