Number 1 quiz: Test your chart-topper knowledge

For any popstar, getting a Number 1 is the holy grail. While artists are happy just to get into the charts at all, for most of them that's why they get up in the morning – to grab a Number 1.

And of course revealing the Number 1 single is a big part of what the Official Charts are about. Everyone has their favourite chart-topper, or that one much-loved song they believe was robbed of a stay at the top spot.

But how much do you know about the songs that slayed the Official Singles Chart? We've got 25 tricky teasers for you, and 26 correct answers – yes, that's right, 26.

So get your chart head on, make your choices and see if you can make it all the way to the top of the charts. And no Googling!