This is originally a WAV, and I added a few more parts to it later and saved it as a WAV, and attempted converting this to MP3. Apparently Newgrounds thinks that this is "not a valid MP3 file".
I'm not the only one having upload problems; quite a number of people are...
Naua
Wow, I had no idea you're voice would sound like that. You have an ax-scent? thats sexy...I mean nice. Thumbs up from me, you really got potential. I would love to hear you singing some reggae. Most Def.
Troisnyx
Thank you! ^_^ I'll be honest, I don't know how autotuned Enya would fit with reggae, but I'm really glad that you love that voice. And well... I love the Received Pronunciation (BBC English) accent! :D