Namesakes
Fictional Characters from Television:
1 character
Trudy "Big Booty" Joplin 1984 Miami Vice 
Notable Musicians:
1 composer, 1 musician
Scott Joplin c. 1867-1917
Janis Joplin 1943-1970 rock
Title Characters:
1 musical
(musical) Janis Joplin 2001 Love, Janis