My lovely friend George, McCartney, 74, tweeted.

Still celebrating his birthday.

Lucky to have had him in my life.

Photo of George HARRISON and BEATLES and Paul McCARTNEY

Credit: David Redfern/Redferns

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.

Harrisondiedof lung cancer at the age of 58 on Nov. 29, 2001.

He is really just my baby brother.

The pair posed for photos that were posted to Twitter.

Thanks for coming over man and playing Great bass, Starr tweeted.

I love you man peace and love.