(CNN) -- Ed McMahon, the longtime pitchman and Johnny Carson sidekick whose "Heeeeeeerre's Johnny!" became a part of the vernacular, has died.

McMahon passed away peacefully shortly after midnight at the Ronald Reagan/UCLA Medical Center, his publicist, Howard Bragman, said Tuesday

McMahon, 86, was hospitalized in February with pneumonia and other medical problems.

He had suffered a number of health problems in recent years, including a neck injury caused by a 2007 fall. In 2002, he sued various insurance companies and contractors over mold in his house and later collected a $7 million settlement.

Carson made cracks about McMahon's weight, his drinking and the men's trouble with divorce. McMahon was married three times; Carson, who died in 2005, had four wives.