I Believe I Can Fly by R. Kelly

Embarrass? Come now. Who would be embarrassed singing a song by a man who raped small girls. Plus, it has been played in SPACE. See http://spaceflight1.nasa.gov/gallery/audio/shuttle/sts-122/html/ndxpage1.html

I Will Always Love You by Whitney Houston

Okay, this song is a cover in itself (Dolly Parton original), and that scene in 'The Bodyguard' was so over done by the time it came out, it was retro already.

I Want It That Way by Backstreet Boys

No introduction needed. The hours my friends and I spent mocking this song will live in our hearts forever. And by mocking, I mean listening to obsessively and committing to memory. I don't think I even need the karaoke screen in front of me.