Keenan Cahill is at it again.
The Illinois teen, who has made a name for himself by recruiting celebrities to lip sync with him online to a number of pop hits, appears in a new video alongside Glee cast members Harry Shum Jr., Dianna Agron, Darren Criss and Jenna Ushkowitz.
Watch below, as Cahill - who is affected by Maroteaux-Lamy syndrome - and this all-star squad dance around to Katy Perry's “Last Friday Night (T.G.I.F.).”
Other stars that have teamed with Chaill include 50 Cent, David Guetta, Pauly D, Brian Wilson and Cody Ross.