This Sterling Knight photo contains
costume d'affaires and costume d’affaires.
There might also be
costume, costume de vêtements, bien habillé personne, costume, costume pantalon, tailleur-pantalon, pantalon costume, pantsuit, personne bien habillé, pantalon de costume, robe costume, robe complète, frac, manteau de queue, queues, cravate blanche, cravate blanche et la queue, robe longue, tailcoat, tail coat, tails, cravate blanche et queues, habit, robe pleine, and queue de pie.
This is Sterling Knight's audition for the role of Stuart (who was removed from the series) and then he got the part of Chad. Sorry for the bad quality.