Quiz: Who sold more?

Two artists, two titles, one question! Which one sold the most?

Let's get quizzical!

Most of us know a big hit when we see one, but can you guess how much they sold? Pretty tricky, we know. 

But what if we pit one song against another? Can you guess which one shifted the most copies? Some might be Number 1s, some might be million-sellers, but the question is very simple: which one sold more?

Use your chart smarts or take a wild guess at which of these classic singles and albums have the highest haul!