Song question? Music video included?

Question

Before you watch the clip, what is the song and author of the 3rd, 12th, 13th, 17th, 18th, and19th/20th (idk it's the one where he puts his hands on his hips and does a circling coy boy move) http://youtube.com/watch?v=dMH0bHeiRNg&mode=related&search=

Watch it! It's soooo funny!

Answer 1

3: Staying Alive -- Bee Gees
12: Mr. Roboto -- Styx
13: ?Break Dance? -- I don't know this one and my searching has been unsuccessful
17: Ice Ice Baby -- Vanilla Ice
18: Can't Touch This -- M.C. Hammer
19: Love Shack -- B-52's
20: Apache -- Sugar Hill Gang