The Angels and the Dead
The Hells Angels were consistent road crew for the Grateful Dead in the 1960s through the 1980s. Several murders and attacks were drawn back to the Angels over the course of the several year hiatus that the Dead took in the '70s. They also helped distribute drugs at the shows.
The Jewelry Comes With Age
Outside of patches, the Hells Angels use rings and different types of jewelry to signify seniority once they have filled out their jackets. When a member of the Hells Angels shows up wearing rings on every finger, you best believe that they're an important and powerful person in the gang.