Besides songs written and/or performed on the meme, there are several songs that have become popular on the meme:
Lady Gaga
"Teeth" (mirror, as the original was taken down)
"Canadian, Please"- Julia Bentley & Andrew Gunadie
"Fairytale" - Alexander Rybak
""Space Dog"" -?
"Gee" - Girls' Generation
"The Delicious Tomato Song" - Daisuke Namikawa
"You Spin Me Round (Like A Record) " - Dead or Alive