BBC Technology
Celebrities are queuing up to put their name on the side of your head. Endorsed headphones, a trend kick-started by hip-hop star Dr Dre, have become big business.
Spencer Kelly talks to music star 50 Cent about why he has chosen to launch a product into the very competitive headphone market.
Interesting Video:
http://news.bbc.co.uk/1/hi/programmes/c ... 784035.stm








