27 club

The 27 Club is a cultural phenomenon that at the age of 27 several Musicians, Actors, and Artists died from accidents, drugs or alcohol, disease or health problems, being poisoned, or murdered.

A full list of members of the 27 Club can be seen at https://en.wikipedia.org/wiki/27_Club#Identified_members

This creepy coincidence was first noticed when Brian JonesJimi HendrixJanis Joplin, and Jim Morrison all died at the age of 27 between 1969 and 1971. Among the first of the 27 Club members to die was Robert Johnson.