After his father's death in 2001, Harrison, in collaboration with Jeff Lynne, completed his father's final album, "Brainwashed", which was released in 2002 and went on to win a Grammy for Best Pop Instrumental Performance, in "Marwa Blues", at the 46th Annual Grammy Awards in 2004. Harrison participated in the "Concert for George" on the first anniversary of his father's death. The concert was organized by Eric Clapton and featured some of his father's friends and collaborators, including former Beatles bandmates Paul McCartney and Ringo Starr as well as Clapton, Billy Preston, Ravi Shankar, Jeff Lynne, Tom Petty, Jim Keltner, and Joe Brown. Harrison played backup acoustic guitar for most of the concert. Before the finale, McCartney relayed to the audience, "Olivia said that with Dhani up on stage, it looks like George stayed young and we all got old", referencing the physical similarities between father and son.