Just one year later, Cooleyhighharmony was released and Wanya Morris, Shawn Stockman, Michael McCary, and Nathan Morris were atop the charts. A long string of successes would follow, including multiple Grammys. Known for their intricate four-part harmonies and clean-cut image, they produced a string of smash hits in the 1990s, including âœMotownphilly,â âœThe End of the Road,â âœIt’s So Hard to Say Goodbye to Yesterday,â and âœOn Bended Knee,â the last of which they performed onstage with superfan Justin in 2010. was strumming chords âœKnockin’ on Heaven’s A whole new avenue of music opened up. After Dylan came the full-throttle guitars of Jimi Hendrix, Aerosmith, and Van Halen. âœTo play metal or even the 1980s hair band stuff like Journey and from Bob Dylan’s Doorâ with his dad.