Chinese languages

Hi all, I just found this fabulous song, but unfortunately I don't have any idea what it's about! It could be full of swear words and I'd never know! Can someone help me out? Someone from another forum told me they thought it was Chinese, but they were not sure what dialect.

The song is "DJ - No more again DJ", and it can be played for free or downloaded at http://www.mp3.com/artist/onibi-part-1/songs/

If you speak the language it is in, I would sure love to hear a summary of what the lyrics mean, or even a translation of the song if you have a lot of time on your hands!

Thanks!

actually, it's a Cantonese song and i can hardly understand what the guy is singing,
as the name of this song tells, i guess the lyrics are about some complaints from a DJ who might be tired of his career,
like "DJ is not an easy job"
“DJ不易做”