Are you a stamp collector, and a fan of classic American pop culture? Good news! The United States Postal Service plans to roll out several new stamps featuring cultural icons from bygone eras. Rolling Stone reports the USPS will unveil new stamps featuring Jimi Hendrix, Janis Joplin, and James Brown in 2015. It's also reported a John Lennon stamp is planned. No release date has been announced. A document from the Citizen's Stamp Advisory Committee also discusses stamp releases honoring Sam Cooke, Roy Orbison, and Michael Jackson.