Gus, the beloved Central Park Zoo polar bear who died last month, was famous for his apparent depression.
His death inspired musician Marc Philippe Eskenazi to write a song called "Restlessness." Jonah Green directed the music video.
"I'm half prisoner of war, half ambassador to New York," goes one lyric. "Do you realize I could kill you?"
Eskenazi recently bid adieu to another New York City staple, the Fung Wah Bus, with the song "Farewell Fung Wah."