Comedy legend Jerry Lewis is recovering in hospital after suffering a heart attack during a flight across the US.
Lewis was hospitalised in 2003 to be weaned off steroids
The 80-year-old was taken to hospital in San Diego after the flight from New York landed in the city.
Candi Cazau, publicist for a Las Vegas hotel where Lewis had been due to perform next month, said he had suffered "a very minor heart attack".
The comedian also has a "touch of pneumonia", she added, but doctors expect him to make a full recovery.
Lewis is best known for his comedy partnership with Dean Martin during the 1950s, before going on to star in films such as The Ladies Man and the original The Nutty Professor.
He has been plagued by ill health for the last two decades, battling prostate cancer and meningitis.
In 2001 he began taking steroids for the chronic lung condition pulmonary fibrosis.
He was taken to hospital in 2003 to be weaned off the prescription drugs, after they caused him to gain large amounts of weight.
Since then, Lewis has made a gradual return to the limelight.
In March, he travelled to Paris to receive France's highest civilian accolade, the Legion of Honour.
He turned up for the sober event wearing slippers, and pretended to fall asleep during a 20-minute speech by France's culture minister.
Last week, the comedian announced plans to direct a musical version of The Nutty Professor on Broadway.
His Las Vegas shows have been cancelled following Sunday's heart attack, but Lewis still plans to host his annual telethon for Muscular Dystrophy in September, his publicist said.