Poor, Frankie Sandford. We love the Saturdays sweetheart so much, and she was really just trying to do something nice when suddenly, she suffered this wardrobe malfunction outside of a London nightclub.

Wearing a cleave-baring tank top during a night out with fellow Sats singer Mollie King, Sandford was about to hop in her car to head home when fans gathered around hoping to get an autograph or photo with the beautiful Brit.

Sandford kindly obliged, but during all of the hullabaloo, the 'What About Us' hit maker's boobie peeked out to say hello (NSFW photo here). It stinks to see embarrassing things happen to such nice people, but it honestly could've been a lot worse. At least she wasn't wearing a skirt... she could've suffered a SUPER NSFW, Lindsay Lohan-style malfunction.

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