Katy Perry is displaying some pretty amazing cleavage in her guest starring role, so even if you don't watch How I Met Your Mother, you may want to tune in just to check out her hotness.

The California Gurl plays Zoey’s (Jennifer Morrison) beautiful but not so bright cousin, Honey; an adorable, but somewhat naive, yet totally sexy chick.

It sounds like she's got some scene-stealing one-liners, and a captivating storyline involving Neil Patrick Harris. Will they make-out?

Perry’s episode airs February 7. We'll definitely be watching!