"I Think We're Alone Now" is a song written and composed by Ritchie Cordell that was first recorded by Tommy James and the Shondells. It was a major hit for the group, reaching number 4 on the US Hot 100 in April 1967. It finished at No. 12 on Billboard magazine's year-end singles chart for 1967.
The song has been covered several times by other artists, most notably by Tiffany in 1987. The Tiffany recording reached number 1 on the charts of various countries including the US, UK, Canada, and New Zealand. Other cover versions have also charted, including those by the Rubinoos and Girls Aloud.