A lovers' quarrel helped introduce the Beatles to their first mega fan and long-time collaborator, Klaus Voormann, in the early 1960s.

"Nuts, cheap, unrelenting, optimistic, sweet. She’s just crazy, Oh my God. But she writes great songs," the pop legend says ...

While we look back at some trends from the '70s and gasp in horror, others are actually returning to popularity, like these ...