Kurt Cobain Gives Love (And Guitar Hero 5) A Bad Name

Good idea: Letting people play Guitar Hero 5 as their Xbox Live avatars, especially now that you can adorn them with doodads and trickets.
Bad idea: Letting people play Guitar Hero 5 as Kurt Cobain.
Worst idea: Letting people play Guitar Hero 5 as Kurt Cobain during any other song other than Nirvana. It just leads to sadness and tears as portrayed in this delightful train wreck of a video: