I'll give you some titles of UK n° 1 hits of the 1980s, and you'll give the artist. Simple, isn't it? I'll of course look for the harder ones, no "Beat it" or so. I have to say that I don't remember most of them (I would probably recognise them when I heard them though).
Oh, please, no Googling or web searching, I want to know whose knowledge of the bad music of the plastic era is up-to-date
1. "Coward of the county"
2. "Together we are beautiful"
3. "Green Door"
4. "Seven Tears"
5. "My camera never lies"
6. "Save your love"
7. "Candy girl"
8. "Give it up"
9. "I know him so well'
10. "If I was"
11. "I want to wake up with you"
12. "Every loser wins"
13. "Jack your body"
14. "She's leaving home"
15. "One moment in time"
16. "First time"
17. "You'll never stop me from loving you"
18. "Swing the mood"
19. "That's what I like"
20. "Let's party"
They are ordered chronologically. Some are by famous artists, more are by forgotten wonders, and three songs are even by the same artist.
As a bonus: two songs with the title "The power of love" were a N° 1 record in the eighties, and furthermore reached in a third version N° 11. One of the three got covered in the 1990s and reached then number 4. Can you name the four artists?
Bored of normality, why not go smurf? 
Good ones! It isn't sad, I was amazed that I knew so many of the other ones still. I think it is more sad that you can have a number one single and be completely forgotten a few years later...
......what were you guys in the UK thinking
That may explain why you didn't know it 
Bravo! The knowledge of the music of the eighties around here is amazing. Next time I'll try it with either the seventies or the nineties 