"What's New Pussycat?" is a song written by Burt Bacharach and Hal David for the movie of the same name, sung by Tom Jones. Nominated for the Academy Award for Best Original Song in 1966, it was Jones' third UK top 30 record, peaking at number 11. In the US, "What's New Pussycat?" peaked at number 3, and was Tom Jones' second entry on the Top 40.

The original single included a 13-second instrumental introduction, ending in the sound of shattering glass, but later issues omitted this introduction.

It has also been performed by Bobby Darin, Tony Bennett, Alvin and the Chipmunks, Anita Kerr,The Wailers and The Four Seasons.Barbra Streisand performed several lines in her "Color Me Barbra Medley" from the TV special and album Color Me Barbra.

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