Keenan Cahill has a viral video hit on his hands. The Chicago youtuber put up a video of himself lip-syncing to Katy Perry’s hit “Teenage Dream” this week and it grabbed the attention of the singer herself.

Perry Tweeted:

“THIS… is my Teenage Dream,” later adding “I heart you @KeenanCahill.”

Keenan has 11,000 YouTube followers and now over a quarter of a million hits on this video alone.

Here’s the video:

For Katy Perry it’s just more publicity for her Teenage Dream album which sold around 200,000 units during it’s first week in release, it is the No. 1 album in the U.S. at this time.