Watch: Katy Perry Debuts New Song in Fun-Filled H&M Holiday Campaign

It's not even Thanksgiving yet, but Katy Perry is putting us in a holiday mood with her latest campaign for H&M.

In this uplifting musical number, the whimsical singer becomes Tinkerbell and debuts an original song performed with a dancing chorus of happy little helpers. Noted male model Sean O'Pry makes a shirtless cameo around the one-minute mark, so keep your eyes peeled.

Watch the video, below: