15. Brian May (69)
The greatest showman in the world, Freddie Mercury, might have taken an early exit from the world, but he still continues to inspire bandmate Brian May to this day. This 69-year-old lead singer for Queen holds a Ph.D. degree in astrophysics in addition to his musical talents. He has been recently touring the world with Adam Lambert. You may or may not like Lambert for trying to take Mercury’s place, but you have to admire May for his resilience in seeking to keep Queen’s music alive.