Watch Miley Cyrus & Ariana Grande Perform An '80s Classic In Onesies

Courtesy of The Happy Hippie Foundation
Miley Cyrus and Ariana Grande sing "Don't Dream It's Over" in a video for The Happy Hippie Foundation in 2015.

Can this be a recurring occurrence, please?

To help promote her just-launched Happy Hippie Foundation, which raises awareness and funds for homeless youth, Miley Cyrus invited Ariana Grande to perform Crowded House's "Don't Dream It's Over" -- while wearing unicorn and mouse onesies, of course.

Teaming up with Facebook, Cyrus kicked off the Backyard Sessions performances May 5 with a stunning duet with Joan Jett, and followed it with a cover of the Replacements' "Androgynous" featuring Jett and Laura Jane Grace. 

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Listen to the two ladies' vocals complement each other below.

Soooooo thankful for Ariana Grande for being a part of the #backyardsessions!! You're the sweetest little #happyhippie...

Posted by Miley Cyrus on Thursday, May 14, 2015