Grojmans are a band that is combination of Grojband and The Newmans. That are fused together by DJ Fusion's fusion machine. They were fused together in the episode "Kon-Fusion". Their vomit-inducing performance is what got the restaurant, Fuse This, shut down by the health department on it's ill-fated opening day.
- Corey Carrie - A fusion between Corey Riffin and Carrie Beff. They are both the lead singers and guitarists of the band. Carrie is also a lyricist unlike Corey, who steals the lyrics for his songs from his sister's diary.
- Kin Kim - A fusion between Kin Kujira and Kim Kagami. They are the keyboardists of the band.
- Kon Konnie - A fusion between Kon Kujira and Konnie Kagami. They are the drummers of the band.
- Laney Lenny - A fusion between Laney Penn and Lenny Nepp. They are the bassists of the band. Both have a secret crush on their respective blue-haired beanie-wearing frontman/guitarist, with Laney liking Corey and Lenny liking Carrie.