Find Out Which Two Classic Rock Muses Inspired Ariana Grande's Billboard Cover Photo

Austin Hargrave
Ariana Grande photographed by Austin Hargrave at Quixote in Los Angeles on July 29, 2014.

Ariana Grande's polka dot-covered headware on Billboard's cover this week may seem futuristic, but the singer shares that the inspiriation is actually from the past. Specifically, from famous rocker muses Pattie Boyd and Celia Hammond.

"60s mod space here is one of the shots that inspired the shoot," Grande wrote on Instagram along with the below photo (which was shot by Brian Duffy). 

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