You know you have a good friend when he flips your favorite music into something brand new for your birthday. Elite Gymnastics has crafted a lo-fi cover of Taylor Swift’s “Ours” to celebrate his friend and fellow poptimist Claire Boucher, bka Grimes, turning 25 yesterday. It also features a little bit of Justin Bieber’s Nicki Minaj-collab “Beauty And The Beat.” Hopefully Grimes had a better time yesterday than wild child Bieber did earlier this month. Check out the cover below.

Elite Gymnastics – “私たちのもの (O U R S) (Taylor Swift/Justin Bieber Cover)”