Britney Spears isn't saying much these days, but her pants are speaking volumes.

Spears -- who was spotted Thursday in London wearing a decorative ring on her wedding finger -- performed her new single, "Toxic," for the "Top of the Pops" TV show wearing a simple message to fans: the words "Just Fine," handwritten on her pants.

The 22-year-old singer didn't utter a syllable during the taping, but with an outfit like this, why would she need to? The show's rep told PEOPLE.com: "Some people think (the message is) about Justin, but others think it relates to more recent events in her life."

Meanwhile, on Saturday, Spears was in Cannes for the NRJ Music Awards, where she presented an award to Madonna -- only this time, they just shared a light peck on the cheek.

According to the Associated Press, Madonna, 45, wearing a demure green polka-dot dress, got a standing ovation. Madonna was quoted as saying, "My ambition may be American, and I may have married a Brit, but my heart belongs to France."

For her part, Spears -- who was dolled up like one of the three musketeers -- apparently kept mum.

Not that there weren't some loose lips. The pop divas' failure to exchange an openmouthed kiss (as they did last year at the MTV Video Music Awards) prompted ongoing remarks from French presenters as the show went on.