"Beep" is a song by American girl group the Pussycat Dolls from their debut studio album, PCD (2005). It features will.i.am from the Black Eyed Peas who composed the song with additional writing from Kara DioGuardi and Jeff Lynne and additional production from Ron Fair. The song contains a sample of the recording "Evil Woman" (1975) written by Lynne, and performed by Electric Light Orchestra.

The Pussycat Dolls were originally a burlesque cabaret act formed in 1995 by choreographer Robin Antin. In 2004 after Antin negotiated a record deal with Interscope Records, The Pussycat Dolls transformed into an recording act under the supervision of Antin and then-A&M Records president and producer Ron Fair. After recruiting lead singer Nicole Scherzinger, they began to work with Fair who executive produced their 2005 debut album, PCD.

"Beep" is a pop song which was written by William Adams, Kara DioGuardi, Jeff Lynne in the key of G minor. The instrumental string hook is a sample of ELO's "Evil Woman" (1975). Critics noted that the song was similar to Black Eyed Peas' "My Humps" (2005); both were produced and written by will.i.am. The staccato Destiny's Child-like verse may be interpreted as naughty lyrics, clipped by a bleep censor.

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