What is the Capital of: Saudi Arabia?

Questions

80's - How many No. 1 songs did Paula Abdul have in the 1980s?

80's - What was the title of Bryan Adams' only No. 1 song of the 1980s?

80's - Name the Academy Award-winning artist who scored a No. 1 hit with 'Chariots of Fire - Titles.'?

80's - What is the title of Janet Jackson's first No. 1 song?

80's - Who was the first country star to top the Top-40 charts in the 1980s?