GRANT GUSTIN ON HOW TO SLUSHIE DARREN CRISS!

You saw what happened in 'Michael' episode which Sebastian slushie Blaine. Poor Blaine! Grant Gustin  dished to Huffington Post  on the scene and it turns out a whole lotta practice went into that one throw! Owwww!

"I had Slushie practice with a dummy for that one scene," Grant explained of the epic act. "At first, they gave me water to practice the momentum, and then I practiced throwing water in a dummy’s face probably a hundred times before I was allowed to throw a Slushie."

"Darren would have to go through hair and make-up again if I messed up," Grant said. “They were riding me, so I felt a lot of pressure. Thank god I got it in one take. I felt so cool getting to throw that Slushie because that’s what Glee is, you know?”

Grant also told Huffington Post that one New Directions-er in particular can’t keep his eye off of the Warblers – and it just so happens to be the guy on the receiving end of the Slushie.

“Whenever [Darren] sees me in that Warbler uniform, he’s very vocal about how jealous he is,” Grant said. “When we filmed the Warbler number for ‘Michael,’ he was there, stalking us. I think it kind of kills him to see a cool Warbler number happening when he can’t be a part of it.”