Janis Joplin joins Jimi Hendrix, John Lennon, Elvis Presley and other rock stars who have their own USPS commemorative stamp. Like the Hendix sheet, it mimics the look of a vinyl 45 photo jacket.
The 16-stamp sheet sells for $7.84.
Other current commemorative stamps include Harvey Milk, Charlton Heston, Shirley Chisolm, Rosa Parks and Althea Gibson.
