Seikan Hikou and Pollyanna.
The former I sing so much, I was at a friend's house, and I sang the whole thing while the music playing in the backround..
Pollyanna I sang at a party where me + a few friends were sitting around a table. I got teh stares... (Pollyanna is a very childish song... 'I belive the morning sun... Always gonna shine again, and...')