Which Song Performance Was Your Favorite in The FlashSupergirl Musical Crossover?

Fans react to the performances by Melissa Benoist, Grant Gustin, Darren Criss, John Barrowman, and more.

by | March 22, 2017 | Comments

Even though many actors on The Flash and Supergirl series on The CW have sung before, some fans heard them sing for the first time Monday night during the long-awaited musical-crossover episode “Duet” on The Flash.

The songs included covers and originals and were revealed as Barry (Grant Gustin), Kara (Melissa Benoist), Cisco (Carlos Valdes), Joe West (Jesse L. Martin), and guest stars Music Meister (Darren Criss), Malcolm Merlyn (John Barrowman), and Dr. Stein (Victor Garber) sang them.


Music Meister visited Supergirl first to whammy her with his hypnotic, spiralling eyes. She woke up as a ’20s moll about to go on stage. Mon-El (Chris Wood) and J’onn J’onzz (David Harewood) followed Music Meister to The Flash’s Earth, but the tuneful mischief-maker proved too fast for the heroes and whammied Barry as well.

In their own minds, Kara and Barry conjured a world of a movie musical, thanks to Barry’s childhood love of Singin’ in the Rain and Kara’s of The Wizard of Oz. She had also suggested Funny Face for a movie night with Mon-El on the Supergirl episode “Star-Crossed” the previous night. Sans powers, Barry and Kara had to follow the musical script, with Winn Schott (Jeremy Jordan), Cisco, Merlyn, Stein, Joe and Iris West (Candice Patton) playing different characters in the story.

So what did the fan think of the show-stopping numbers? Here are some standout reactions to each performance.

UPDATE: Music from the episode is now available to purchase on iTunes.


Kara got the first solo of the night and threw down the gauntlet for the next hour!


This song goes back to Jackie DeShannon’s 1969 recording, but everyone remembers it most from Scrooged. When Bill Murray finally learns to stop being a Scrooge, he leads the entire cast in a cover on live television. In “Duet,” Criss led Barrowman and Valdes in a new rendition.


From Guys and Dolls, one of the only classic Broadway musicals Garber hasn’t already done.

Not everyone was impressed, though.


An original! Flash fans today may have grown up with the Super Friends cartoon, a kiddie version of The Justice League. Kara also set this up with a “Super Friends” high-five on this week’s Supergirl. This is also the tap dance number Gustin told Rotten Tomatoes about.

Although it was maybe a little too on the nose for some:

“Running Home to You” – GRANT GUSTIN

Barry didn’t let waking up from the musical to top him from singing. He had this original cued up to sing to Iris. Get it? Because The Flash runs fast! Crazy Ex-Girlfriend‘s Rachel Bloom co-wrote both “Super Friends” and “Running Home to You.”

But dude, that proposal is going to be a tough act for regular guys to follow.

So that’s all the songs, but each singer made an impression too. Here’s what the fans had to say about each of the Arrowverse stars.


Before her first number ended, Benoist had her fans rapt.


Some had a fan theory about how Gustin’s natural vocal talents make sense with Barry’s super powers. This is one power Gustin has in real life too.



Criss may have gotten the most love of the night by live tweeting along with the fans.


More than his pipes, fans appreciated Jordan’s piano playing.

But his pipes too.


Valdes is developing a loyal following for his band Tha Los, and they came out to support him tonight.

And when Cisco asked for a GIF, the fans were there to provide.


Barrowman has a legion of fans who’ve followed his singing since before and after the Doctor Who days.


They may have their own fans on Broadway, but they shared a duet, and shared the love on “Duets.”

Which performance was your favorite in “Duet?” Vote in the poll and tell us why in the comments!

Supergirl airs Mondays at 8/7 C; The Flash airs Tuesdays at 8/7 C on The CW

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