The pop superstar took a tumble while performing in Las Vegas on Wednesday night (29Apr15) and she was forced to cancel two weekend shows on doctors' orders.

And to prove the injury isn't just a drama about nothing, the Toxic singer posted a shot of herself wearing a boot on on Friday (01May15).

Britney added the caption: "This boot was made for walkin".

It's not yet clear when Spears will be back onstage.