( CNN ) -- Robin Williams will undergo heart surgery , according to his publicist . Actor-comedian Robin Williams was on an 80-city tour for his one-man show . The 57-year-old actor and comedian postponed his one-man show tour and entered a hospital for testing this week after suffering a shortness of breath . Williams will undergo an aortic valve replacement , the publicist said . `` I 'm so touched by everyone 's support and well wishes , '' Williams said in a statement . `` This tour has been amazing fun and I ca n't wait to get back out on the road after a little tune-up . '' The publicist would not say when or where the surgery will take place . The surgery is similar to the procedure former first lady Barbara Bush underwent Wednesday . Bush 's surgeon , Dr. Gerald Lawrie , described it as `` a very routine procedure '' from the doctors ' perspective . Williams was in the middle of an 80-city tour of his `` Weapons of Self-Destruction '' show , which is expected to resume in the fall , the publicist said . His Web site says the shows `` highlight Williams ' trademark free associations and riffs on social and political absurdities . '' Williams rose to fame in the mid-1970s as the childlike alien Mork , who first appeared on an episode of `` Happy Days '' and then was spun off into his own show , `` Mork and Mindy . '' His manic standup comedy , combining impersonations , commentary , jokes and nonsense in high-speed profusion , was and remains his trademark . View a timeline of Williams ' life and career » . Williams began his movie career with 1980 's `` Popeye , '' but succeeding films , such as 1982 's `` The World According to Garp '' and 1984 's `` Moscow on the Hudson , '' countered his wild standup persona with quiet , pensive performances . ( The performer had attended New York 's famed Juilliard School to study drama in the 1970s , where one of his classmates was Christopher Reeve . ) It was n't until 1987 's `` Good Morning , Vietnam , '' which managed to combine Williams ' frenzied comedy style with more sober drama , that he broke through as a film star . He was nominated for an Oscar for his portrayal of `` Vietnam 's '' DJ Adrian Cronauer . Other Williams films include `` Awakenings '' ( 1990 ) , `` The Fisher King '' ( 1991 ) , `` Mrs. Doubtfire '' ( 1993 ) , `` Good Will Hunting '' ( 1997 ) and `` Insomnia '' ( 2002 ) . He won a best supporting actor Oscar for `` Good Will Hunting . '' Williams has been active in charitable endeavors , most notably the Comic Relief program , which raises money for various causes . Williams ' current heart problems are n't the first time he 's coped with health issues . In August 2006 , the comedian and actor checked himself into an alcohol rehab center . `` After 20 years of sobriety , Robin Williams found himself drinking again and has decided to take proactive measures to deal with this for his own well-being and the well-being of his family , '' his publicist told CNN at the time .
Robin Williams to have aortic valve disease . He suffered shortness of breath while on set with comedy show . Actor and comedian won Oscar for acting in ` ` Good Will Hunting ''