I am a big Beatles fan.  They basically were responsible for pop music becoming an art form in the 1960s
The Beatles are a great band! If i recall the singer was John Lennon right?
They all sang. The band consisted of Lennon, McCartney, George Harrison, and RIngo Starr
I think all but two are dead now
Yes.  It is actually suprising Ringo is not dead.  He actually was twice diagnosed with serious illnesses in his youth.