Some context: Jon Stewart was born Jonathan Stuart Leibowitz on November 28, 1962, in New York City, to Marian (nee Laskin), a teacher and later educational consultant, and Donald Leibowitz, a professor of physics at The College of New Jersey and Thomas Edison State College. Stewart's family are Litvak Jews who emigrated to America from Poland, Ukraine and Belarus. One of his grandfathers was born in Manzhouli (now part of Inner Mongolia). He is the second of four sons, with older brother Lawrence and younger brothers Dan and Matthew.
Stewart was an important factor in the unionization of the Comedy Central writers. The Daily Show writers were the first of Comedy Central's writers to be able to join the guild, after which other shows followed.  Stewart supported the 2007-08 Writers Guild of America strike. On The Daily Show episode just before the strike, he sarcastically commented about how Comedy Central had made available all episodes for free on their website, but without advertising, and said, "go support our advertisers". The show went on hiatus when the strike began, as did other late night talk shows. Upon Stewart's return to the show on January 7, 2008, he refused to use the title The Daily Show, stating that The Daily Show was the show made with all of the people responsible for the broadcast, including his writers. During the strike, he referred to his show as A Daily Show with Jon Stewart until the strike ended on February 13, 2008.  Stewart's choice to return to the air did bring criticism that he was undermining the writers of his show. Seth MacFarlane wrote an inside joke into an episode of Family Guy about this, causing Stewart to respond with an hour-long call in which he questioned how MacFarlane could consider himself the "moral arbiter" of Hollywood. Other former writers of The Daily Show such as David Feldman have also indicated that Stewart was anti-union at the time and punished his writers for their decision to unionize.  The Writers Guild Strike of 2007-08 was also responsible for a notable mock feud between Stewart, Stephen Colbert, and Conan O'Brien in early 2008. Without writers to help fuel their banter, the three comedians concocted a crossover/rivalry in order to garner more viewers during the ratings slump. Colbert made the claim that because of "the Colbert bump", he was responsible for Mike Huckabee's success in the 2008 presidential race. O'Brien claimed that he was responsible for Huckabee's success because not only had he mentioned Huckabee on his show, but also that he was responsible for Chuck Norris's success (Norris backed Huckabee). In response, Stewart claimed that he was responsible for the success of O'Brien, since Stewart had featured him on The Jon Stewart Show, and in turn the success of Huckabee. This resulted in a three-part comedic battle between the three pundits, with all three appearing on each other's shows. The feud ended on Late Night with Conan O'Brien with a mock brawl involving the three hosts.
Did any other celebrities say anything to Stewart?
A: The Writers Guild Strike of 2007-08 was also responsible for a notable mock feud between Stewart, Stephen Colbert, and Conan O'Brien in early 2008.
Some context: Michael "Jakko" Jakszyk (born Michael Lee Curran, 8 June 1958) is an English musician, record producer, and actor. He has released several solo albums as a singer, songwriter, and multi-instrumentalist and has been the lead singer for King Crimson since 2013. His work has been variously credited to "Jakko", "Jakko Jakszyk", and "Jakko M. Jakszyk". Before joining King Crimson, he led bands for over thirty years, including 64 Spoons, Dizrhythmia, 21st Century Schizoid Band, Jakszyk Fripp Collins, and Rapid Eye Movement.
By 1975, Jakszyk was leading an eccentric jazz-rock band called Soon After. His self-confessed "dictatorial tendencies" reduced a bigger line-up to a trio of "two screaming lead guitars and a trumpet" (the latter played by ex-National Youth Jazz Orchestra member Ted Emmett). The band reached the finals of the 1975 Melody Maker National Rock/Folk competition, finishing third to a heavy metal band featuring future Clash co-leader Mick Jones and to a big band featuring future saxophone session musician Gary Barnacle. When Soon After split up, Jakszyk toured with "a strange little band" which supported Camel, Stackridge, and Judas Priest, then briefly joined a Tring-based band called Synthesis which played progressive rock in the Canterbury-scene vein.  Jakszyk's first significant band was 64 Spoons, which he joined as guitarist and lead singer in 1976, co-writing much of the band's material. Between 1976 and 1980, 64 Spoons wrote and performed a blend of pop, progressive rock, jazz, and comedy (typified by their single "Ladies Don't Have Willies"). Boosted by an exuberant and funny live show, 64 Spoons proved popular with audiences but failed to gain an effective record deal or media breakthrough and split up in 1980. Their only album, Landing on a Rat Column, was eventually released in 1992, many years after it was recorded. Jakszyk would described them as "the wrong band at the wrong time".  64 Spoons's work did, however, lead to friendships with several of the musicians who had inspired the band, notably keyboard player Dave Stewart. Following the split of 64 Spoons, Jakszyk joined Stewart, Rick Biddulph, and Pip Pyle in the band Rapid Eye Movement. Jakszyk contributed several songs to the band's repertoire ("One More Time", "I'll Stand On My Own", "Ingmar Bergman on the Window Sill", "Straining Our Eyes", and "Dear Clare", the last of these a 64 Spoons song) and co-wrote material with Stewart ("This Is Not What I Want" and "'Allo Darlin' I Work on the Fair"). Between August 1980 and June 1981, Rapid Eye Movement toured Spain, France, and the UK and recorded material but split up due to Stewart's desire to concentrate on studio work (Jakszyk sang on the original version of Stewart's cover of "What Becomes of the Brokenhearted?", later a hit with a new vocal track by the Zombies' lead singer Colin Blunstone).  During this period, Jakszyk also contributed to sessions for the former Van der Graaf Generator saxophonist David Jackson's album The Long Hello Vol. 3 (eventually released in 1982).
What studio work did he concentrate on?
A:
Jakszyk sang on the original version of Stewart's cover of "What Becomes of the Brokenhearted?",