Conversation so far:
What was one of Sonny James' hits?
Young Love
When was Young Love by Sonny James released?
1956
How well did Young Love by Sonny James do on the music charts?
it topped both the US country and pop music charts
How long did Young Love by Sonny James top the pop music charts?
January to February 1957

Question: How many records did it sell?
Self-contained rewrite: How many records did Young Love by Sonny James sell?