Full Name: Joseph Donovan Burns
Also Known As: Square Boy, Lil' Bro (by Steve)
Birthday: March 1, 1997
Relatives: Steven Burns, Sr. (father), Olivia Burns (mother) Steven Burns, Jr. (older brother), Holly Burns (younger sister), Fred Jones (friend), Daphne Blake (friend), Blue (pet), Ruth Burns (paternal grandmother), Aviva Corcovado (girlfriend), Lincoln Loud (apprentice)
Hair Color: Brown
Eye Color: Brown
Skin Color: Fair
Notable Instruments: Rickenbacker 4003, Guild B-54CE Acoustic Bass, Fender Jazz Bass, Lakland 44-02, Hagstrom Viking Bass, Fender Precision Bass, Gibson Thunderbird Non-Reverse Bass, Gretsch Broadkaster Bass
During the day, Joe always wears different square shirts in 6 different colors: red, orange, yellow, green, blue, and purple with khakis and dark brown shoes. At night, he wears blue pajamas with squares in alternating colors on the top with duck slippers on his feet.
- Joe shares his birthday with English singer and songwriter Mike d'Abo, best known as the second and former lead vocalist of Manfred Mann.
- He met Aviva at an ice cream social in the Starlet City Grand Hotel and has been going out on dates with her ever since
- He also has a passion for ducks and owns a stuffed duck he calls "Boris"
- He also has an incredible sense of humor
- Although he plays bass right-handed, he is actually left-handed when it comes to drawing and writing, making him ambedextrious
- He gets his nickname from the squares on his shirts
- He and Steve both own and share a 1974 Volkswagen Thing that Steve inherited from their father on his 18th birthday