Thanks to the Guilds's Do You Wanna Date My Avatar we've gone full circle.
Once upon a time, the cool thing about Machinima was having avatars singing along to songs, or having songs written for them. Avatars playing people moved quickly from dogs on their hind legs to an art form.
Now the wheel has gone full circle and we have a genuine music video in which people play avatars. (And, yes, I'm aware of previous parodies).