|The Royal Blacksmiths|
The Royal Blacksmiths is a barbershop quartet.
When Cole met up with Lou and his quartet to say goodbye, they sang him a song about how he's goig to save Ninjago and make his father proud.
- Three unnamed members
- In "The Royal Blacksmiths," the Ninja takes The Royal Blacksmiths' place and preforms as a band called "Spin Harmony."