The Beatles are one of my all time favorite bands.
Yes I like them. They formed in Liverpool in 1960.
Wow, such a long time ago. How did they get together/
I'm not sure how they got together initially but they went through a lot of drummers before asking Ringo to join them in 1962. 
I didn't know that. Were all the other members from the beginning?
Not exactly.  They had a bass player named Stuart Sutcliffe initially as well. 
Wow, I've never heard of him. What happened to him?
I think he died in 1962. He was originally an artists and left the band to pursue a career as a painter. 
Wow if he only knew how famous he could have become.
Yes, they got popular after he left.  Beatlemania happened in 1963.