'Teenage Dream': Keenan Cahill Lip-syncing ft.Katy Perry (Video)

Keenan Cahill performing with his idol, Katy Perry. "Teenage Dream" Lipsync with Katy Perry. Katy exasperated Keenan appearance songs on "Teenage Dream" (2010) album.

"You smell fragrant!" said Katy praised Keenan, quoted from Pop Crush. "I do not recognize my songs to myself."

"I really do not know why people are so fond of this," Keenan said when interviewed in a talk show, as quoted by The Sun. "I had a laptop since I was 13 years. Then I record myself and then uploading it to YouTube and got a great response!"

"Teenage Dream" With Me (Keenan Cahill) and Katy Perry. You can free download video from YouTube: