Elizabeth Ann Guttman (born September 11, 1961), credited as E. G. Daily and sometimes Elizabeth Daily, is an American actress, voice artist, comedian and singer, best known for voicing Tommy Pickles in the Nicktoons Rugrats and All Grown Up!and Buttercup in Cartoon Network's The Powerpuff Girls. She also voiced the title-character from the live-action film Babe: Pig in the City replacing Christine Cavanaugh.

Daily is also well known for her roles in a variety of live action films such as Valley Girl, Dogfight, No Small Affair, Fandango, Streets of Fire, The Devil's Rejects, My Sister's Keeper, and most famously Pee-wee's Big Adventure.

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"Mind over Matter" is a song she released as a single from the soundtrack album of the American comedy film Summer School. The song was written by Michael Jay and Rick Palombi, and produced by Stock Aitken Waterman. It reached No. 7 on the US Billboard Hot Dance Club Songs Chart, and No. 22 on the Cash Box Top 12" Dance Singles Chart. A music video was filmed to promote the single, which was directed by Maurice Phillips and produced by Nicholas Myers for AWGO. It featured many cast members of Summer School and achieved breakout rotation on MTV.

Jay and Palombi wrote "Mind over Matter" in 1985. It was originally recorded by Nikki Leeger and released in 1986 as a UK-only single by RCA.The following year saw Debbie Harry record the song, which was slated for release as a single from the soundtrack of the upcoming film Summer School. However, label disputes caused her version to go unreleased. Although they were willing to allow the song to be included on the film's soundtrack, Chrysalis refused to allow Harry's version to be released as a single. The label decided to have the song re-recorded and came to an agreement with A&M Records over the hiring of Daily, who flew to London to provide vocals on the track.

The single was released in the UK in 1988 peaking at #96.