Cliff Richard was England's answer to Elvis. Sort of. He was a huge hitmaker in the UK - one of the biggest of all time. He charted in every decade from the 1950's through at least 2009 in Europe. In the US, he hasn't had quite as much success, although he had top 40 hits in the 60's, 70's, and 80's here.
This hit from 1979 was far and away his biggest, hitting #7 in the US and #1 in most of the rest of the world. And I find myself humming it on a nearly weekly basis.