"Tower of Song" opens this month with a public program featuring Jimmy Jam and Diane Warren. Prince performs at the 36th Annual NAACP Image Awards at the Dorothy Chandler Pavilion on March 19, 2005, in Los Angeles. Kevin Winter/Getty Images Trending on Billboard Artifacts associated with such wide-ranging recordings as Prince and the Revolution’s Purple Rain , Nirvana ’s Nevermind , Janet Jackson ’s Rhythm Nation 1814 , Herb Alpert & the Tijuana Brass’ “A Taste of Honey” and Earth, Wind & Fire ’s “September” will be on display beginning Thursday, May 28, when The Grammy Museum presents “Tower of Song: Iconic Songwriters & Recordings,” a new exhibit that showcases the Grammy Hall of Fame and the Songwriters Hall of Fame.…