Misc: In 1947 ---------- gains independence from Britain rule. ?

Questions

who had a 1980s number one with let's party?

name the duo who had a hit with everybody wants to rule the world?

calling occupants of interplanetary craft was a best-selling single for which american duo?

what was the manic street preachers' first post-richey single?

which country does mariah carey originate from?