When you are wearing these headphones do other people hear it to?

Here is the link to the headphones http://www.amazon.com/exec/obidos/tg/detail/-/B0002Z82XK/ref=ord_cart_shr?%5Fencoding=UTF8&m=ATVPDKIKX0DER&v=glance do they blair sound out of the headphones to people around me?