Michael Ross Pollack (born April 26, 1994) is an American songwriter and record producer. He has written songs for artists such as Maroon 5, Justin Bieber, Miley Cyrus, Beyoncé, Selena Gomez, Katy Perry, Ed Sheeran, Jonas Brothers, Backstreet Boys, Lauv, Ben Platt, Zedd, Lizzo, Kelly Clarkson, Celine Dion, and many others. He achieved his first US Top 40 radio #1 in February 2020 with Maroon 5's "Memories" and his second in February 2022 with Justin Bieber's "Ghost".