Selena Gomez and Marshmello teamed up in 2017 to produce a hit song named after which animal?

"Wolves" is a song by American singer Selena Gomez and music producer Marshmello. The track was written by Gomez, Ali Tamposi, Louis Bell, Brian Lee, and its producers Marshmello and Andrew Watt. The song was released by Interscope Records on October 25, 2017.

Marshmello first revealed the collaboration on July 22, 2017, when he tweeted: "Happy birthday Selena Gomez! Can't wait for the world to hear what we've been working on." On August 15, 2017, Marshmello wrote that Gomez "sounds absolutely incredible" on the song, when replying to a fan who asked him to talk about the collaboration.

On October 19, 2017, both Gomez and Marshmello took to social media to officially announce their collaboration and its release date. Gomez shared pictures of her wearing a pink version of Marshmello's helmet while they sit on the ground, as well as the two sitting on a couch eating popcorn. It premiered via the radio show "Beats 1", where hoster Zane Lowe named it the day's "World Record".