Maggie Simpson Maggie's occasional speaking parts and other vocalisations are currently provided by Nancy Cartwright, but she has also been voiced by guest stars James Earl Jones, Elizabeth Taylor and Jodie Foster, and by series regulars Yeardley Smith and Harry Shearer. Maggie has appeared in various media relating to "The Simpsons" – including video games, "The Simpsons Movie", "The Simpsons" Ride, commercials and comic books – and has inspired an entire line of merchandise. "The Simpsons" uses a floating timeline in which the characters do not physically age, and as such the show is assumed to be set in the current year.
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