I am definitely not fond of them, especially when I am quite fond of the original song. I find most about as amusing as a knock knock joke...maybe cute the first time..someone had a rule for song circles which I think was great...if you are going to sing them you can't follow the real song with a parody. The one that I love though and never got tired of (not sure it is exactly a parody but maybe ) is Tequila in the Jar by Bob Kotta..mg