Oscar Thomas Holter is a Swedish record producer and songwriter based in the United States. He is best known for his work with record producer and fellow Swede Max Martin and Canadian singer-songwriter the Weeknd on the 2019 single "Blinding Lights", which became the longest-charting Hot 100 song and the #1 greatest song of all time according to the Billboard Hot 100. Holter has written and produced songs with the likes of Katy Perry, Taylor Swift, MARINA, Tove Lo, Charli XCX, DNCE, Hailee Steinfeld, Carly Rae Jepsen, Cher Lloyd, Christina Aguilera, Adam Lambert, and Troye Sivan. He is also a former member of the EBM band Necro Facility.

Reputation is the sixth studio album by the American singer-songwriter Taylor Swift. It was released on November 10, 2017, as her last album with Big Machine Records. She conceived Reputation as a response to the media scrutiny on her private life and public image after her previous album, 1989 (2014), propelled her toward global stardom.