Do Re Me Fa So La Oh No ... Activision trademarking 'Sing Hero'

Activision Blizzard has apparently filed an application to trademark Sing Hero with the US Patent and Trademark Office. IGN speculates that this could be the company's foray into the karaoke market, in an attempt to take on the lord high diva: Sony's SingStar.

Considering how much practice Actilizzard has had with licensing music for Guitar Hero -- and how much potential there is to exploit the franchise -- a pure karaoke game sounds perfectly possible. As the depressing lack of "Drum Villain" constantly reminds us, however, a trademark filing doesn't necessarily guarantee the game's eventual arrival.

[Via IGN]