If there’s one thing we at ChartBlog Towers all agree on, it’s that we don’t work in a tower and there’s only me here. But if there’s ANOTHER thing we all agree on, it’s that you don’t get a No.1 single without a lot of dedication and hard work. And...

The follow-up to a smash hit debut is often tricky. Do you provide more of the same, to consolidate your fanbase and establish your sound, or stretch out a bit, to encourage people who weren’t bowled over the first time? The former is less risky, but could pigeon-hole you as a certain...