Andy Samberg and Joanna Newsom get engaged Actor Andy Samberg, a cast member in the motion picture comedy "That's My Boy," attends the premiere of the film with his longtime girlfriend, musician Joanna Newsom, at the Regency Village Theatre in the Westwood section of Los Angeles on June 4, 2012. LOS ANGELES, Feb. 25 (UPI) -- Andy Samberg's publicist says the U.S. actor and writer is engaged to musician and singer-songwriter Joanna Newsom, his girlfriend of five years. People.com confirmed the betrothal Monday, but did not say when or where Samberg and Newsom intend to exchange vows. No details about how Samberg proposed to Newsom were reported. The couple attended Saturday's Independent Spirit Awards in Santa Monica, Calif. Samberg served as host of the event.