Looking more like she was ready to go for a few rounds in the ring rather than sing some pop music, Rita donned an all-leather ensemble for her performance at the Lytham Proms Festival, with leather gloves, a black cropped top and an oversized Louis Vuitton jacket.
She also took the boxing theme one step further by sporting a giant gold belt around her waist that was almost reminiscent of a championship belt worn by boxers when they've won a fight!
Rita, 22, switched up her hairstyle for the Blackpool crowd too and flaunted a brand new set of corn rows on the top half of her head, while leaving the rest of her long blonde extensions tied into a ponytail.
Her look was completed, of course, by a slick of red lipstick.
Although we might not have been too keen on her interesting outfit, it seems her fans were impressed nonetheless and cheered so much for the songstress during her set that she got a little teary eyed.
After she came off stage, Rita tweeted: "I can't believe you made me cry tonight. It was amazing #Lytham"
The young pop singer has had a whirlwind past few weeks. Not only has she now been named as the new face of fashion label DKNY, but she also managed to squeeze in some down time on the beach last month with her new boyfriend, Calvin Harris.
Calvin and Rita have been seen together on a number of occasions this year and the superstar DJ even recently posted a cute picture of Rita walking by the sea in a white bikini, likening her to Bong girl, Ursula Andress. Aww!
What do you think of Rita's strange boxer outfit? Let us know below, as the best comment each week wins £50!
Go behind-the-scenes of Material Girl in London with Rita:
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