According to Reuters, U.S. website Drudge Report said that Rolling Stones frontman Mick Jagger is to undergo heart valve replacement surgery this week in New York and is expected to a make a full recovery. On Saturday, the veteran rock band said that the group have postponed a tour of the United States and Canada to give Jagger time to receive medical treatment. On Monday Druge Report said that the 75-year old is expected to back on stage by summer.