Timothy Lockwood Armstrong (born November 25, 1965) is an American musician, songwriter, and record producer, best known for his work with punk rock bands Rancid, Operation Ivy, Downfall, and the Transplants. He is also the owner and operator of Hellcat Records. Armstrong was born November 25, 1965 and was raised primarily by his mother. At the age of five, he met Matt Freeman while playing Little League Baseball in Albany, California. Freeman and Armstrong formed a band many years later based on their shared love of bands such as The Clash and the Ramones.