View source of the Music page. Press control + F and search for "secretavatar" in the coding. Go to the unique URL that is in the code to receive the avatar. It'll look something like

Categories: Miscellaneous
Release Date: July 15, 2005
Items Needed: n/a
Rarity: 67.3% have this avatar

Related TDN Content: n/a
Available through TDN's Avatar Lending Program? No

#66CCFF #FF0000 #FF3F40