Some other 1984 singles for your consideration (at least, 1984 is when they were released in the UK):

Cyndi Lauper - Girls Just Wanna Have Fun (83 in the US, I believe)

Billy Idol - Rebel Yell

Madonna - Holiday

Scritti Politti - Word Beez (Pray Like Aretha Franklin)

Spandau Ballet - Only When You Leave

Ollie & Jerry - Breakin' (There's No Stoppin' us)

China Crisis - Wishful Thinking

ABC - SOS

New Order - Thieves Like Us

The Smiths - What Difference Does It Make?

U2 - Pride

Shannon - Let the Music Play

Tears for Fears - Shout

Michael Jackson - Thriller (tied with Duran Duran's Wild Boys for my favourite pop video that year)

Pointer Sisters - Automatic

Bronski Beat - Smalltown Boy