Credit: Mike Yarish/FOX ©2011 Fox Broadcasting Co.

Earlier today, we got a first listen to Brittany’s (Heather Morris) energetic performance of Ke$ha's "Dinosaur" from Tuesday’s Season 3, Episode 19: “Prom-asaurus. But why just listen to a song when you can watch the entire performance — crazy Pebbles Flintstone costume, gigantic T-Rex heads, and all?

Watch the video clip here.

Entertainment Weekly has the exclusive first look at Brittany’s can’t-miss performance at senior prom. Seriously, Heather Morris’ dance moves are totally insane. But along with her dinosaur-backed performance, there’s another part of this clip you’ll definitely want to pay attention to.

Towards the end of the song, we see Finn (Cory Monteith) having a conversation with Sue (Jane Lynch) — and it appears that Quinn (Dianna Agron) has gone missing! Where could she be? Oh, and did Finn just spill the beans that Quinn might have won PROM QUEEN? It certainly sounds like that’s what he said.

Source: Entertainment Weekly

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