This Castle fan art contains
business suit.
There might also be
well dressed person, suit, pants suit, pantsuit, dress suit, full dress, tailcoat, tail coat, tails, white tie, white tie and tails, street, city scene, and urban setting.
This is a Beckett-centric Castle fan video set to the Sound of Music's "I have confidence." It is meant to be corny/funny. Give it a minute to settle before you give up on it.