On the old forums I remember talking about Hypercolor shirts...

 ....Hypercolor has managed to have a resurgence lately though, sneaking into surf shops across the California coastline and even managing to take the spotlight in a new American Apparel campaign. So should we give it another chance? Designers Anzevino and Florence did a whole season of.....

http://www.thefader.com/articles/2008/7/17/style-hyper-resurgence

American Apparel hypercolor video:

http://www.americanapparel.net/storefront/movies/rsa6407tc/