Miley Cyrus and Ariana Grande Cover Crowded House

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If you haven't heard already, earlier this month Miley Cyrus founded the Happy Hippie Foundation, which is a non profit organization who "Rally young people to fight injustice facing homeless youth, LGBT youth and other vulnerable populations."

Dressed in their onesies, Miley and Ariana Grande teamed up to help promote the Happy Hippie Foundation by covering 'Don't Dream It's Over' by Crowded house