“My lovely friend George,” McCartney, 74, tweeted. “Still celebrating his birthday. Lucky to have had him in my life.”
Harrison was born in Liverpool on Feb. 25, 1943. He met McCartney at the age of 14 and went on to play lead guitar for The Beatles. Harrison died of lung cancer at the age of 58 on Nov. 29, 2001.
McCartney had said in a statement after his passing, “He was a lovely guy and a very brave man and had a wonderful sense of humor. He is really just my baby brother.”