Maggie Simpson either of Groening or Csupo's initial recordings (from the show's early episodes). Other than her sucking noise, Maggie has been known to make other noises, such as occasional squeals and babbling. In most instances, these vocalisations are provided by either Nancy Cartwright or Yeardley Smith. Although she had previously spoken in fantasies and dream sequences, Maggie's first word spoken in the normal continuity of the series occurred in "Lisa's First Word", when she was voiced by Elizabeth Taylor. Although it was only one word ("Daddy"), Taylor had to record the part numerous times before the producers were satisfied. James Earl
The Simpsons: Testify Branson," which pays tribute to all the washed-up celebrities of yesteryear. ... So even if the show is no longer appointment viewing in your house, this CD definitely warrants another trip to Springfield." The Simpsons: Testify The Simpsons: Testify is an album that features songs from the animated television series "The Simpsons". It was released on September 18, 2007. It includes appearances by artists such as Jackson Browne, Shawn Colvin, David Byrne, The B-52's, The Baha Men, NRBQ and "Weird Al" Yankovic, and an alternate version of the end credits performed by Los Lobos. Ricky Gervais, Steve Buscemi and Kelsey