And she was joined by royalty!
JLS perform at M&M's store opening
The band perform at M&M's World and tweet pictures
The boys have played their upcoming single, "She Makes Me Wanna" in London's Leicester Square at a private event to celebrate the opening of the M&Ms store.
"She Makes Me Wanna", which comes out on July 24, has been produced by RedOne, the man behind many a Lady Gaga's tracks and it features vocals by US singer Dev.
The boys tweeted pictures of themselves at the event, writing: "Yellow Fever!!!!!all about the M&M's today...sweet toothed out of my mind!Jx" and "RED m&m's for breaky! U want some? Mhmm . O x "
The M&Ms London store is the first in Europe and will sell chocolates, glassware and clothing.
She took the mirror selfie before the reverse camera was even a thing! Say what?!
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