Ow ow! Sounds like someone was sending a certain One Direction member a message. Taylor Swift took to the stage at the NRJ Music Awards in Cannes, France, where she performed her massive hit 'We Are Never Ever Getting Back Together' -- and Harry Styles was in the room. Burn!

On the red carpet, Swift stunned in yet another short, lowcut dress, this time a glittery gold and cream number with matching heels. Aside from darkly rimmed eyes, her makeup was simple -- all eyes that weren't on her gams or somewhat suspiciously ample cleavage were on her baby blues!

Onstage Swift rocked a sexy black lace romper and knee-high boots, smoky eyes and pale lips, a far cry from her retro, modest, red lipsticked look as of late. Her performance was a little awkward to watch because Swift is still a bit gangly in her choreography and often fares much better when she sticks to holding her guitar instead of dancing, and her vocals early on were sometimes inaudible. Not everyone can dance and sing at the same time, and not everyone should try.

Still, T-Swizzle delivered, even injecting some French into the spoken word interlude during the song. Afterward, she offered some "ouis" to her gracious host, further endearing herself globally be working hard to appeal to everyone -- even those whose language isn't her first. She's a class act!

Watch Taylor Swift Perform 'We Are Never Ever Getting Back Together' at the NRJ Music Awards