"Somebody's Knockin '" is the debut single of American country music singer Terri Gibbs. It was released in late 1980 from her debut album, Somebody's Knockin '. It was co-written by Jerry Gillespie and Ed Penney: Penney was a record company executive who liked Gibbs's voice when he first heard her audition tape, but felt she needed stronger material.  Penney was a former Boston disc jockey who had promoted records and written a number of songs before moving to Nashville.  He was the producer of "Somebody's Knockin'" and became Terri Gibbs's manager.