Katy Perry is the latest lovely pop star face of CoverGirl, and she really brought her catchy tunes and showed off the brand's makeup in her new commercial for the makeup company, which aired during the 2014 Grammys.

What is that song that backs her in the ad?

The answer: Perry spends the commercial dancing around in a variety of crazy and amazing outfits to her song 'This Is How We Do' from her album 'Prism.'

It works perfectly for the advertisement, which is promoting Covergirl's Lip Perfection lipstick and volumizing Bombshell mascara.

The commercial itself is bright, fun and loud -- just like Perry herself -- and the products she's promoting. It's a match made in heaven!