French rocker Johnny Hallyday has undergone surgery in California to replace his artificial hip.
The 67-year-old star has previously undergone an operation to replace the joint, and he went back under the knife to improve his fitness ahead of an upcoming tour.
He is now resting at home in Los Angeles and is expected to take at least four weeks off to recover.
A statement from the star's press office reads, "The operation went very well. He now has to have four weeks of rest in his Los Angeles residence and will be resuming his normal activities in mid-February... (The surgery was carried out so he can be) in perfect physical form to be ready for his extremely busy schedule in 2011 and 2012."
Hallyday was in and out of hospital several times in 2009 after a back operation in Paris, France left him in critical condition. He is currently taking legal action against his surgeon to determine whether he botched the initial surgery.