Alex

Let's hear it one more time for Darren Criss. Who knew Katy Perry's "Teenage Dream" was such a tough song to sing?

The remaining six contenders vying for an arc on Glee found out the hard way. In Sunday's episode of The Glee Project, they'll each be tasked with recording the entire tune, whereas in previous weeks, they had only been asked to sing a couple of lines from the given songs.

Everything you knew about Glee's future is wrong: Producers clarify Ryan Murphy's comments

How'd they do? In this clip, only Samuel appears to be sailing through — vocal coach and mentor Nikki Anders loves him.

Alex and Hannah, on the other hand ... well, watch and see which one of them scored her rather fatal sounding "oh no":

The Glee Project airs Sundays at 9/8c on Oxygen.