Mattias Hagström is the drummer for Sarah Klang. He has been touring with her since 2017, including several headliner tours as well as support act for First Aid Kit on their 2019 arena tour.

He is based in Gothenburg where he records drums out of his studio for various artists. He has played on music by Sarah Klang, Isak Danielson, Mimi Bay and Harpo among others.