Quizzing

Beach House is correct

Thank you.

Which (superb) band is comprised of Victoria Legrand and Alex Scally?

Space Oddity?

As no one has had a go, I will try Ian Iron and Michael Maiden who, presumably, the group was named after.

Alright, that was silly but I will suggest that Bruce Dickenson is one. I cannot even name another member.

I have my doubts about Sade as I think that her "comeback" album was more recent than 2007. A better answer for the time might be Joss Stone.

Sade?

The idea of an ice cream trying to be a detective is ridiculous so I never watched this. A guess:

Laurel and Hardy

You have still not said if the chart was based on UK or worldwide sales. My post was a complete waste of time.

I'm afraid that curiosity got the better of me and I looked at Radio 1's web site so I cannot answer this question. However (and I hope that I do not give any more clues than you have given already!) I must say that there is something odd about this. As far as I can see, it was not trailed by Radio ...

Hothouse Flowers?