Collecting albums covers, posters and concert t's is the true sign of a genuine fan of Classic Rock. The U.S. Postal Service knows about your passion to horde. Due to the success of last years Jimi Hendrix stamp. The USP is preparing to release a Janis Joplin stamp. They're calling it the Music Icons series. Other soon to be icons to be licked then stuck to the outside of an envelope: John Lennon, Jim Morrison and Roy Oribison. The Postal Service knows you love your music loud and proud. Why not say it on the outside of a Rock n Roll hand delivered letter? No specific release date for Joplin’s stamp has been announced