Answer the question at the end by quoting:

ZZ Top  is an American rock band formed in 1969 in Houston, Texas. The band has, since 1970, consisted of bassist and lead vocalist Dusty Hill, guitarist and lead vocalist Billy Gibbons (the band's leader, main lyricist and musical arranger), and drummer Frank Beard. "As genuine roots musicians, they have few peers", according to former musician, critic and collector Michael "Cub" Koda. "Gibbons is one of America's finest blues guitarists working in the arena rock idiom [...] while Hill and Beard provide the ultimate rhythm section support."
The original line-up was formed in Houston and consisted of Gibbons, organist Lanier Greig (died February 2013) and drummer Dan Mitchell.  The name of the band was Gibbons' idea. The band had a little apartment covered with concert posters and he noticed that many performers' names utilized initials. Gibbons particularly noticed B.B. King and Z.Z. Hill and thought of combining the two into "ZZ King", but considered it too similar to the original name. He then figured that "king is going at the top" which brought him to "ZZ Top".  ZZ Top was managed by Bill Ham, a Waxahachie, Texas native who had befriended Gibbons a year earlier. They released their first single, "Salt Lick", in 1969, and the B-side contained the song "Miller's Farm". Both songs were credited to Gibbons. Immediately after the recording of "Salt Lick", Greig was replaced by bassist Billy Ethridge, a band-mate of Stevie Ray Vaughan, and Mitchell was replaced by Frank Beard of the American Blues. Due to lack of interest from U.S. record companies, ZZ Top accepted a record deal from London Records. Unwilling to sign a recording contract, Ethridge quit the band and Dusty Hill was selected as his replacement. After Hill moved from Dallas to Houston, ZZ Top signed with London in 1970. They performed their first concert together at the Knights of Columbus Hall in Beaumont on February 10.  In addition to assuming the role as the band's leader, Gibbons became the main lyricist and musical arranger. With the assistance of Ham and engineer Robin Hood Brians, ZZ Top's First Album (1971) was released and exhibited the band's humour, with "barrelhouse" rhythms, distorted guitars, double entendres, and innuendo. The music and songs reflected ZZ Top's blues influences. Following their debut album, the band released Rio Grande Mud (1972), which failed commercially and the promotional tour consisted of mostly empty auditoriums.

What band members changed later on?

", Greig was replaced by bassist Billy Ethridge,



Answer the question at the end by quoting:

Lucas was born and raised in Modesto, California, the son of Dorothy Ellinore Lucas (nee Bomberger) and George Walton Lucas, Sr., who owned a stationery store. He is of German, Swiss-German, English, Scottish, and distant Dutch and French descent. Growing up, Lucas had a passion for cars and motor racing, which later inspired his films 1:42.08 and American Graffiti. Long before Lucas became obsessed with filmmaking, he yearned to be a race-car driver, and he spent most of his high school years racing on the underground circuit at fairgrounds and hanging out at garages.
In 1969, Lucas married film editor Marcia Lou Griffin, who went on to win an Academy Award for her editing work on the original Star Wars film. They adopted a daughter, Amanda Lucas, in 1981, and divorced in 1983. Lucas subsequently adopted two more children as a single parent: daughter Katie Lucas, born in 1988, and son Jett Lucas, born in 1993. His three eldest children all appeared in the three Star Wars prequels, as did Lucas himself. Following his divorce, Lucas was in a relationship with singer Linda Ronstadt in the 1980s.  Lucas began dating Mellody Hobson, president of Ariel Investments and chair of DreamWorks Animation, in 2006. Lucas and Hobson announced their engagement in January 2013, and married on June 22, 2013, at Lucas's Skywalker Ranch in Marin County, California. They have one daughter together, Everest Hobson Lucas, who was born via gestational carrier on August 12, 2013.  Lucas was born and raised in a Methodist family. The religious and mythical themes in Star Wars were inspired by Lucas's interest in the writings of mythologist Joseph Campbell, and he would eventually come to identify strongly with the Eastern religious philosophies he studied and incorporated into his films, which were a major inspiration for "the Force". Lucas has come to state that his religion is "Buddhist Methodist". He resides in Marin County.  Lucas is a major collector of the American illustrator and painter Norman Rockwell. A collection of 57 Rockwell paintings and drawings owned by Lucas and fellow Rockwell collector and film director Steven Spielberg were displayed at the Smithsonian American Art Museum from July 2, 2010 to January 2, 2011 in an exhibition titled Telling Stories.  Lucas has said that he is a fan of Seth MacFarlane's hit TV show Family Guy. MacFarlane has said that Lucasfilm was extremely helpful when the Family Guy crew wanted to parody their works.

Does he have a family?
In 1969, Lucas married film editor Marcia Lou Griffin,