Timothy Lockwood Armstrong (born November 25 1966) is an American musician best known for his work with punk rock bands Rancid, Operation Ivy, and Transplants, as well as his record label Hellcat Records. One of the first bands that Tim played in was Basic Radio. After Basic Radio disbanded, he performed in the ska punk band Operation Ivy under the nickname "Lint" from their beginning in 1987, until they disbanded in 1989.

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