Nicholas Christian Hopkins was an English pianist and organist. He performed on many British and American rock music recordings from the 1960s to the 1990s, including on songs recorded by the Beatles, the Rolling Stones, the Who, the Kinks, the Steve Miller Band, Jefferson Airplane, Rod Stewart, George Harrison, John Lennon, Paul McCartney, Ringo Starr, the Hollies, Cat Stevens, Carly Simon, Harry Nilsson, Joe Walsh, Peter Frampton, Jerry Garcia, Jeff Beck, Joe Cocker, Art Garfunkel, Badfinger, Quicksilver Messenger Service and Donovan. He is widely considered to be one of the greatest studio pianists in the history of popular rock music.