Disney just put together what may be the greatest mashup to date in a Taylor Swift meets Phineas and Ferb video.

The video combines Perry the Platypus as Agent P battling his rival Dr. Doofenshmirtz with Dr. D appearing to be singing the Swift's hit song, People reports.

The mashup is expected to air on Disney at 8P.M. ET during Gravity Falls. People has a small clip of the mashup available on its website. Following the videos premiere it will become available on Disney's website.

Phineas and Ferb is an animated series based on two brothers who create new ways to have daily. Their pet Platypus, Perry, has a secret identity- “Agent P,” who battles the evil Dr. Doof and his lethal inventions which usually end in “anator.”

This is the first time Swift's “I Knew You Were Trouble” has been played with. Earlier this year a video featuring the song with a goat screaming in the middle surfaced and instantly went viral.

Image: ABC