Who did janis joplin buy a tombstone for in 1970?

In 1970, Janis Joplin purchased a tombstone for her friend and fellow musician, Jim Morrison, who was the lead singer of The Doors. The tombstone was intended to honor Morrison's legacy after his untimely death. Joplin, known for her deep connections to her friends and the music community, wanted to ensure that Morrison's memory was preserved in a meaningful way.