Problem: Maines was born in Lubbock, Texas, to country musician and producer Lloyd Maines and his wife Tina May Maines. She attended Williams Elementary School in Lubbock where her second grade teacher recalls being told by Maines during a math lesson, "Teacher, I don't need to learn this stuff--I'm gonna be a star." Maines was a cheerleader while attending O. L. Slaton Junior High School, and graduated in 1992 from Lubbock High School where she had participated in the school choir. Maines has described growing up in conservative Texas, saying "I always rebelled against that.

Maines had a public feud with fellow country music star Toby Keith over the 2002 chart-topping country hit "Courtesy of the Red, White and Blue", as well as a comment Maines made about U.S. President George W. Bush during a March 2003 Dixie Chicks concert in London.  Maines publicly criticized Keith's song "Courtesy of the Red, White and Blue" by saying, "I hate it. It's ignorant, and it makes country music sound ignorant. It targets an entire culture--and not just the bad people who did bad things. You've got to have some tact. Anybody can write, 'We'll put a boot in your ass.'" Keith responded by belittling Maines's songwriting skills with, "I'll bury her. She has never written anything that has been a hit" and, "That's what I do--I write songs." Keith further stated, "she said anyone can write 'We'll put a boot in your ass', but, you know ... she didn't."  After Maines commented at a March 2003 Dixie Chicks concert at the Shepherd's Bush Empire theatre in London that the Chicks didn't want the Iraq War and were "ashamed" President Bush "was from Texas", Keith's 2003 "Shock'n Y'all" tour began displaying a backdrop showing a doctored photo of Maines with Iraqi dictator Saddam Hussein. Shortly thereafter, on May 21, 2003, Maines wore a T-shirt with the letters "F.U.T.K." written on the front while performing for the Academy of Country Music Awards broadcast. The Dixie Chicks website stated that the letters stood for "Freedom, United, Together in Kindness." Some saw it as a veiled insult directed at Keith.  In August 2003, Keith publicly declared that he was done feuding with Maines, explaining, "You know, a best friend of mine ... lost a two-year-old daughter to cancer. ... [Recently] I saw ... a picture of me and Natalie and it said, 'Fight to the Death' or something. It seemed so insignificant. I said, 'Enough is enough.' ... People try to make everything black and white. I didn't start this battle. They started it with me; they came out and just tore me up. One thing I've never, ever done, out of jealousy or anything else, is to bash another artist and their artistic license."  In the 2006 documentary Dixie Chicks: Shut Up and Sing, backstage footage prior to her appearance wearing the F.U.T.K. shirt recorded the conversation between Maines and Simon Renshaw and confirmed that the original intent of the shirt was, in fact, a shot at Keith in response to his criticism of her: the letters stood for "Fuck You Toby Keith". As of January 2007, Keith continues to refuse to say Maines's name and argues that the doctored photo was intended to express his feeling that Maines's criticism was tyrannical and a dictator-like attempt to squelch Keith's free speech.

What was his reaction?

Answer with quotes: Keith responded by belittling Maines's songwriting skills

Question:
Edgar Yipsel "Yip" Harburg (born Isidore Hochberg, Yiddish: ysydvr hvkbrg; April 8, 1896 - March 5, 1981) was an American popular song lyricist who worked with many well-known composers. He wrote the lyrics to the standards "Brother, Can You Spare a Dime?"
Harburg and Gorney were offered a contract with Paramount: in Hollywood, Harburg worked with composers Harold Arlen, Vernon Duke, Jerome Kern, Jule Styne, and Burton Lane, and later wrote the lyrics for The Wizard of Oz, one of the earliest known "integrated musicals," for which he won the Academy Award for Best Music, Original Song for "Over the Rainbow."  Of his work on The Wizard of Oz, his son (and biographer) Ernie Harburg has said:  So anyhow, Yip also wrote all the dialogue in that time and the setup to the songs and he also wrote the part where they give out the heart, the brains and the nerve, because he was the final script editor. And he--there were eleven screenwriters on that--and he pulled the whole thing together, wrote his own lines and gave the thing a coherence and unity which made it a work of art. But he doesn't get credit for that. He gets lyrics by E. Y. Harburg, you see. But nevertheless, he put his influence on the thing.  Working in Hollywood did not stop Harburg's career on Broadway. In the 1940s, he wrote a series of "book" musicals with social messages, including the successful Bloomer Girl (1944), set during the Civil War, which was about temperance and women's rights activist Amelia Bloomer. Harburg's best known Broadway show, Finian's Rainbow (1947) was, in its original production, possibly the first Broadway musical with a racially integrated chorus line, and features his "When the Idle Poor Become the Idle Rich." It was made into a film in 1968 starring Fred Astaire and Petula Clark, directed by Francis Ford Coppola.
Answer this question using a quote from the text above:

What else is Harburg famous for?

Answer:
he wrote a series of "book" musicals with social messages,