Ariana Grande and Miley Cyrus Rock Onesies in 'Don't Dream It's Over' Video

We love it. Check out Ariana Grande singing a duet with Miley Cyrus in this "Don't Dream It's Over" music video. Yes, they are adorable, kicking it in onesies on this classic Crowded House cover!

Miley is a magical unicorn while Ariana is the most adorable mouse ever (slippers too, nice touch) in this just-released Backyard Sessions recorded for Miley's Happy Hippie Foundation. Ariana teased the collab last week, singing the praises of Miley's work with a pic of the two snuggling up in their onesies.

Miley took to Instagram to thank Ariana for her involvement, writing: "Soooooo thankful for @arianagrande for being a part of the #backyardsessions!! You're the sweetest little #happyhippie bear-mouse ever Loooooove you"

Ariana responded with nothing but love:

💜💜💜💜 https://t.co/RpAGlJVP2I

- Ariana Grande (@ArianaGrande) May 14, 2015

Happy Hippie Presents: Backyard Sessions - "Don't Dream It's Over" featuring Ariana Grande

Soooooo thankful for Ariana Grande for being a part of the #backyardsessions!! You're the sweetest little #happyhippie bear-mouse ever! Loooooove you The Happy Hippie Foundation #HappyHippiePresents #dontdreamitsover

Posted by Miley Cyrus on Thursday, May 14, 2015

via Source