Need help!!

I have been searching for an entire day but nothing is coming up. It's not a manga. It's 3 japanese men that sing and they have like character models that represent them, the guy that does higher notes is a character with orange hair(if I'm into wrong), while the guy that usually does all the harmonising and lower notes is a character with purple hair and is a girl. I can't seem the remember the 3rd guy but they do like a game that's like singing random parts where they go into the singing booth and sing parts they think suits them the best without telling each other and then they do a blind reaction to see how the entire song sounds like and it's usually very good. PLEASE IF ANYONE KNOWS I CANT SEEM TO FIND A THING ABOUT IT AND I DESPERATE. They first appeared on my tiktok but I remember a comment saying they do this on YouTube or something