VIDEO: Darren Criss & Katy Perry Perform "Teenage Dream" Together!

After the success of Darren Criss' cover of Katy Perry's "Teenage Dream" on Glee it was only a matter of time before they performed together — and the time has now come!

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At the Trevor LIVE annual fundraising event held at the Hollywood Palladium on Sunday night, Katy joined Darren and the Glee's Dalton Academy Warblers to perform the song, MTV News reports.

Just after the event, a video of the performance hit the Web for everyone's enjoyment.

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Katy joins Darren right near the end of the song. Watch the video below!

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Not exactly a combined version of the videos below, but we'll take what we can get!

What did you think of their performance?