A number of iGEM teams made parody music videos. A couple of my favourites are here:
Plasmid'outai from the INSA-Lyon team which has a nice Bollywood fell to it.
The St2ool Project from the Valencia Biocampus team- a parody of YMCA.
There was also a Katy Perry parody I liked, but I haven't been able to find the video yet, I'll update this post when/if I find it.