If you've got too much time on your hands, try and guess what the letters stand for. Or, you can just look at this thread on Fark. Or, you can just read the following sentence. Much Music Video Awards.
*No, I wasn't really deluged with e-mails asking for a picture of Avril Lavigne's ass-cleavage.
UPDATE: A reader inadvertantly alerted me to the fact that I neglected to give proper credit for the ass-cleavage, hence the photo credit that didn't appear there before.