I have a song's melody in my head :D, I've heard it two times on the radio, but I don't remember any part of the lyrics. I've created an MP3, is it possible to upload it somewhere, so maybe someone could hear and help me with what this song is?

Ok, I added the attachment. I just change it's extension to an xls extension. What you should do is save it as mp3.

Just to let know, that I got it. Am I good or what. :D The magic formula: Radio playlists + YouTube. ;)
Oh and the song is Sugababes - Denial.