Redbone impostors played at Montana state fair

If you ever go to see a show in your town by a forgotten band who are best known for a decades-old hit song, you can sometimes expect to see no original members on stage -- but this is ridiculous. A band who played at the Butte-Silver Bow Fair in Montana claimed to be Redbone, a '70's group best known for their 1974 hit "Come And Get Your Love". Redbone does still exist, but the band that played under that name at the Montana state fair were impostors! Here is the story.

My first question is: who would have the 'nads to pull a stunt like this? And my second question is: why would anyone want to impersonate Redbone?