Watch Lorde perform Whitney Houston’s “I Wanna Dance With Somebody”

During the Australian portion of her Melodrama world tour, Lorde performed a song that wasn't from her own repertoire. "Hey, congratulations on that same-sex marriage bill," says Lorde, before launching into a rendition of Whitney Houston's "I Wanna Dance With Somebody."

Lorde was referring to the legislation passed last week in Australia, allowing same-sex couples to get married. Watch her perform Whitney Houston's dance hit as a tribute to the progressive policy.