Their characters may have barely even said two words to each other on the show, but Glee actors Grant Gustin (Sebastian) and Kevin McHale (Artie) seem to be great pals in real life!

The two have previously tweeted pictures of hanging out on-set, but that’s nothing compared to the flurry of photos we got over the weekend. Co-star Dianna Agron’s (Quinn) held a circus-themed birthday bash on April 29 — and the guys showed up in the perfect pair of matching costumes.

Why so serious?

Kevin tweeted a before and after photo of the creepy clown transformations, while Grant followed up with an entire collage of fun party pics. From making goofy-frown faces to playing silly saxophones, the guys seem to be having a blast in these pics.

We did feel a little bad for (fellow birthday girl) Jenna Ushkowitz [Tina], who’s getting a big kiss from a deranged Joker in one of the pics. But then we realized that, clown makeup or not, Jenna’s still getting a kiss on the cheek from Kevin McHale... and now we’re just extremely jealous.

Fellow partygoer Brittany Park tweeted a final photo of she, Grant, Kevin, and pal Hannah Douglass. We can’t get enough of the goofy facial expressions the guys are making. Priceless.

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