They "disbanded" in 1970, but their music won't fail to be popular for a while yet. However, if you're asking when the band members died, John Lennon was fatally shot my a crazed maniac outside his home in New York City in 1980, and George Harrison succumbed to cancer in the early 2000s. Paul McCartney and Ringo Starr are still alive and well, however, and going strong!