Pictures: 2010 in Entertainment

Katy Perry was supposed to have a playdate with Elmo on the venerable children's TV show, but some parents protested after seeing the clip on the internet. The problem? Perry's dress exposed more cleavage than they were comfortable with. Sesame Street announced it would pull the clip from the show, but both Perry and Elmo say they hope to have another playdate -- with a more stringent dress code -- soon.