This Sterling Knight screencap contains
costume d'affaires, costume d’affaires, costume, and costume de vêtements.
There might also be
bien habillé personne, costume, costume pantalon, tailleur-pantalon, pantalon costume, pantsuit, personne bien habillé, pantalon de costume, costume trois pièces, 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.