You can take it to the place where you purchased the console (if the item is under warranty) or contact Microsoft.
If you lie about what happened to it...say it broke on it's own.
On your Xbox 360 Dashboard go to Account Settings. Then Account Recovery. You will need a internet connection obviously and your Microsoft .net username and password. Only takes minutes.
Xbox Music Mixer happened in 2003.
it broke
They broke up.
it broke
it broke
When Pangaea broke apart we got continents which what we have today.
it broke in half
it broke
they broke up
THE BAND BROKE UP