This Doctor Who screencap contains
costume d'affaires and costume d’affaires.
There might also be
bien habillé personne, costume, costume pantalon, tailleur-pantalon, pantalon costume, pantsuit, personne bien habillé, pantalon de costume, costume, and costume de vêtements.
A song for River Song to 'Fine Fine Line' par Avenue Q. I haven't seen them, nor do I know the context of this song, but I liked it and I couldn't help myself. How serious is this song for Avenue Q?