Before, I wasn't interested in English... But, a day, I started to listen to music that I liked it so much. These songs were in English, and thanks to that, now I can speak or write English more or less, and I use it so much.
So, thanks to songs ^^ They're very important to learn a language.
Also, I've learnt HTML, CSS, PHP, and now, I'm interested in MySql (PHP required), JavaScript and to improve PHP.
Here, in Spain, English language is obligatory. And French becomes obligatory when you start to study graduate.