YouTube sensation, Keenan Cahill, has created a new lipsynch video, this time to Katy Perry’s “Last Friday Night (T.G.I.F.)” and with cast members of Glee as his backup dancers.

Dianna Agron, Darren Criss, Harry Shum Jr. and Jenna Ushkowitz joined the Cahill backstage during their Glee Live arena tour to create the video, and despite being on the web for only two days, the video already has more than 100,000 views.

The Glee cast members join a long list of Cahill’s celebrity collaborators, including Katy Perry, 50 Cent, David Guetta and Britney Spears, to name a few. Cahill has also reportedly signed with G-Unit records.

The teenager who hails from Illinois and suffers from Maroteaux-Lamy syndrome, whose symptoms include clouded corneas, deafness, a crouched stance, and restricted joint movement, has garnered 268 million views on YouTube and is among the highest viewed on the website, attracting fans with his versions of hit songs and the many celebrity cameos in his videos.

Watch the video here:

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