Miley Cyrus and Ariana Grande Perform a Cover of Crowded House's

It's a diva duet! Miley Cyrus and Ariana Grande performed a cover of Crowded House's 1986 hit "Don't Dream It's Over," released Thursday via Cyrus' Facebook.
The duet is meant to promote The Happy Hippie Foundation, a nonprofit organization Cyrus recently started to help homeless youth and other vulnerable populations, including the LGBT youth community. The pop star recently explained why she launched The Happy Hippie Foundation, writing, "The Happy Hippie Foundation is encouraging people to be the artists of a picture of true freedom, freedom of self-expression...freedom to be true to themselves. The fight to be free isn't over. We have to rally together and fight injustice