"Young Girl" was an RIAA million-selling Gold-certified single, written by Jerry Fuller, performed by Gary Puckett & The Union Gap with instrumental backing by members of The Wrecking Crew, and released in 1968. The song hit #2 on the Billboard Hot 100 for three weeks, stuck behind (Sittin' On) The Dock of the Bay by Otis Redding for the first week and Honey by Bobby Goldsboro for the remaining two. It also hit #1 on the UK Singles Chart and the US Cash Box listing. In the UK, the recording enjoyed a second chart run in 1974, when it peaked at No. 6.