superstar
     n : someone who is dazzlingly skilled in any field syn: ace,
         adept, champion, sensation, maven, mavin, virtuoso,
          genius, hotshot, star, whiz, whizz, wizard,
         wiz
see also:
ace adept champion sensation maven mavin 
virtuoso genius hotshot star whiz 
whizz wizard wiz 

94 moby thesaurus words for "superstar":
   a per se, ace, big name, boss, celebrity, champion, chief,
   commander, constellation, crackerjack, cynosure, danseur noble,
   dean, diva, electronics king, feature attraction, figure,
   first tragedian, first-rater, folk hero, fugleman, galaxy, genius,
   good hand, great, great man, head, headliner, heavy lead, hero,
   heroine, higher-up, honcho, idol, immortal, important person,
   jeune premier, king, laureate, lead, leader, leading lady,
   leading light, leading man, lion, luminaries, luminary, magician,
   mahatma, man of genius, man of mark, master, master hand,
   master spirit, mastermind, name, nonpareil, notability, notable,
   paragon, paramount, past master, person of note, personage, pleiad,
   pop hero, popular hero, popular idol, practiced hand,
   prima ballerina, prima donna, principal, prodigy, protagonist,
   public figure, ruler, sage, senior, singer, skilled hand,
   social lion, somebody, star, superior, superman, the greatest,
   the most, top dog, topnotcher, virtuoso, whiz, wizard, wonder,
   worthy