Musical episodes of TV are inherently a little bizarre, even if you do them every week like “Crazy Ex-Girlfriend.” Maybe that’s why we’re so glad “The Flash” decided to lean into the silliness in its musical crossover episode with “Supergirl.”

We’re not going to lie to you, you’ve got to suspend a lot of disbelief to make this episode work, but once you do it’s going to be the funnest 45 minutes of your life.

Jokes that never stop, musical performance that will actually have you clapping in the middle of your living room, and a “Superfriends” duet between Barry (Grant Gustin) and Kara (Melissa Benoist) that is definitely a showstopper — and so clearly written by Rachel Bloom you’ll wonder if she’s not secretly friends with the Music Meister (Darren Criss).

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The inclusion of Malcolm Merlyn (John Barrowman) and Martin Stein (Victor Garber) in the musical medley of characters is a pretty obvious talent grab, but it’s 100 percent worth it once you hear them sing. You can’t have talent like that available to you and not use it!

At the center of it all is, of course, some great romance (and some romance that make both Kara and Barry cringe), so shippers of all kinds should enjoy.

“Supergirl” fans especially should not miss this episode. The Arrow-verse crossovers typically do a good job of suspending the preexisting plots on both shows to allow for an “event episode” that won’t leave fans confused if they miss it. This crossover, however, has some pretty important development for certain “Supergirl” characters, so be sure to tune in.

“The Flash” airs Tuesdays at 8 p.m. ET/PT on The CW.

Posted by:Lindsay MacDonald

Lindsay MacDonald is a Los Angeles based entertainment reporter with an affinity for CW superheroes. She graduated from Pepperdine University with a major in Media Studies and a borderline unhealthy obsession with TV in 2012. She would much rather spend the day binge-watching ‘The Flash’ or sorting ‘Game of Thrones’ characters into Hogwarts houses than venturing outdoors. TV words to live by: “Never ignore coincidence. Unless, of course, you’re busy. In which case, always ignore coincidence.”