OK, hard to choose from many videos to come up for the 30 greatest...  Here's my list:

30. Dexy's Midnight Runners "Come On Eileen"
29. Power Station "Some Like It Hot"
28. Kix "Don't Close Your Eyes"
27. L.L. Cool J "Going Back To Cali"
26. The Clash "Rock The Casbah"
25. Thomas Dolby "She Blinded Me With Science"
24. Level 42 "Something About You"
23. Devo "Whip It"
22. Young MC "Bust A Move"
21. Toni Basil "Mickey"
20. Robert Palmer "Addicted To Love"
19. Whitesnake "Here I Go Again"
18. Billy Idol "White Wedding"
17. Janet Jackson "Pleasure Principle"
16. Twisted Sister "We're Not Gonna Take It"
15. Men Without Hats "The Safety Dance"
14. The Cure "Lullaby"
13. The Cars "You Might Think"
12. Madonna "Like A Virgin"
11. Prince "Raspberry Beret"
10. Tom Petty & The Heartbreakers "Don't Come Around Here No More"
9.  Def Leppard "Photograph"
8. New Order "True Faith"
7. B-52's "Love Shack"
6.Beastie Boys "No Sleep Till Brooklyn"
5. Genesis "Land Of Confusion"
4. INXS "Need You Tonight/Mediate"
3. Michael Jackson "Beat It"
2. Duran Duran "Girls On Film"
1. A Ha "Take On Me"

I'll give it a go, Woops but you've hit the nail on the head with A-ha's 'Take on me' - A work of art!

30. 'Do they know it's Christmas' - Band Aid
29. 'I wanna dance with somebody' - Whitney Houston
28. 'Walk the dinosaur' - Was not was
27. 'Dancing on the ceiling' - Lionel Richie
26. 'Fade to gray' - Visage
25. 'I got my mind set on you' - George Harrison
24. 'A kind of magic' - Queen
23. 'I.O.U' - Freeez
22. 'Safety dance' - Men without hats
21. 'I want to break free' - Queen
20. 'Ghostbusters' - Ray Parker Jnr
19. 'Get out of my dreams, get into my car' - Billy Ocean
18. 'Fight for your right to party' - Beastie Boys
17. 'Dear Jessie' - Madonna
16. 'She blinded me with science' - Thomas Dolby
15. 'Our house' - Madness
14. 'Sowing the seeds of love' - Tears for fears
13. Leave me alone' - Michael Jackson
12. 'We all stand together' - Paul McCartney
11. 'Happy Hour' - The Housemartins
10. 'Lose your love' - Blancmange
9.  'Sledgehammer' - Peter Gabriel
8.  'Rockit' - Herbie Hancock
7.  'Don't come around here no more' - Tom Petty
6.  'Somebody's watching me' - Rockwell
5.  'Take me up' - Scotch
4.  'Star Trekkin'' - The Firm
3.  'Reet Petite' - Jackie Wilson
2.  'Bridge to your heart' - Wax
1.  'Take on me' - A-ha

I wanna dance with somebody-Whitney Houston
Greatest love of all-Whitney Houston
She bop-cyndi lauper
Money changes everything-cyndi lauper
Girls just wanna have fun-cyndi lauper
Never gonna give you up-Rick ashley
Uptown girl-Billy joel
Paradise city-Gun's and roses
True blue-madonna
Papa don't preach-modonna
Billie jean-michael jackson
beat it-michael jackson
We are the world-various 80's artists
Dancing on the ceiling-lionel richie
i want your sex-george michael
If I could turn back time-Cher
Stuck with you-Huey lewis and the news
Shake your love-Debbie Gibson
I think were alone now-Tiffany
The right stuff-NKOTB
Please don't go girl-NKOTB
Against all odds-Phil Collins
Love shack-B-52's
Cold Hearted snake-Paula Abdul
Luka-Suzanna Vega
Girl I'm gonna miss you-Milli Vanilli
Time after time-cyndi lauper
How will I know-Whitney Houston
Pour some sugar on me-Def Leapard
Kokomo-Beach Boys
:D ;D 8) :D ;D 8) :D ;D 8) :D ;D 8) :D ;D 8) :D ;D 8)

I tried to stay away from too many obvious ones and I tried not to repeat an artist.  So, in no particular order, here goes...

New Year's Day (Live at Red Rocks) - U2
Driver 8 - REM
Prince Charming - Adam & The Ants
One Step Ahead - Split Enz
Groove Is In The Heart - Dee-Lite
Hot For Teacher - Van Halen   :P
People Are People - Depeche Mode
She's Tight - Cheap Trick
One Step Beyond - Madness
Once In A Lifetime - Talking Heads
Billie Jean - Michael Jackson
Wrapped Around Your Finger - The Police
Is There Something I Should Know - Duran Duran
Need You Tonight/Mediate - INXS
I Won't Let You Down - PhD
Wicked Game - Chris Isaak
Don't Answer Me - Alan Parsons Project
Cuts Like A Knife - Bryan Adams
Shake It Up - The Cars
Love Song - The Cure
I Wish I Had A Girl - Henry Lee Summer
Sexy + 17 - Stray Cats
Boys Of Summer - Don Henley
Sea Of Love - Honeydrippers
Head Over Heels - Tears For Fears
(Don't You) Forget About Me - Simple Minds
Love Without Anger - Devo
Tonight I'm Yours - Rod Stewart
Cherry Bomb - John Cougar Mellencamp
Boomtown - David & David

That was pretty fun!   ;D