Sing Hero concept art chronicles a game that never escaped development

Sing Hero was a planned karaoke extension of Activision's now-dormant Guitar Hero franchise, and concept art published on artist Obray Williams' website reveals a game that never escaped development.

Pi Studios, which had also developed the PlayStation 2 and Wii ports of Rock Band and Rock Band 2, was said to be developing Sing Hero when the project was canceled. You can head over to Williams' website to see the rest of the concept art. Siliconera has a handful of screenshots for the game that never was, too.