I can not stress my answer enough - MARSHAL.
From the second he arrived to my island he started singing. He sings during any time or weather, in the most unusual spots that villagers don't usually go to. He sings so frequently and I am not complaining.
Amelia has sang only at the plaza, and has duet'd with Katt
Katt only has sang at the plaza.
Tabby has sang literally all over my island, and with others. Shes constantly singing and sings the most out of all my villagers. She's also sang near a music player.
I noticed some villagers sing, but I think that it isn’t tied to personality since I have a lot of Normals but only some of them sing. I want to make a list of villagers who sing. Sometimes, there seem to be some who don’t sing but will sing if there is a group with them.
Please do specify if you only see them sing in groups. I’ll start off.
Solo singers on mine are Muffy and Marina. For Group singers, I saw Lily, Wolfgang, and Chops singing together in the plaza at one point.
List so far:
Anabelle
Apple (Group and solo in plaza)
Felicity
Maddie (Near Music Player)
Pom-Pom (Group and Solo)
Rosie (Solo)
Tangy
Wendy (Solo and group)
Bunnie (Near Microphone)
Celia (Group)
Fauna (Group)
Lily (Group)
Lolly
Marina (Solo, also seen in group)
Melba
Molly (Group)
Nan
Sally
Skye
Stella (Solo)
Sydney
Tia (Near player)
Astrid
Claudia
Diana (Group)
Judy (Solo in plaza)
Julia (Group)
Mathilda (Group)
Pancetti (Solo)
Whitney (Near Microphone)
Al (Near Radio)
Bob (Group, also near music player)
Drago
Erik (Group)
Hopkins
Rex (Group)
Zucker
Axel (Group)
Bam
Dom (Group and Solo on plaza)
Peck
Sprocket
Apollo
Camofrog (Solo)
Chief (Group)
Cyd
Dobie (Near Microphone)
Elvis (Group)
Fang(Group)
Hopper
Octavian
Roscoe (Solo)
Static
Wolfgang (Group, also seen Solo and near record player)
Chops (Group)
Henry
Jacques
Julian (Group at plaza)
Keaton
Kyle (Solo)
Marshal (Group at plaza)
Phil
Pietro
Raymond (with microphone)
Rodney
Zell
Sylvia use to sing a ton back when I still had her, but other then that I don’t think any of my villagers really sing too much.. I think I’ve seen Drago and Flora singing a few times, but not that much
Sings a lot - Skye, Octavian, Fuchsia, Julian (see them all singing solo, in groups, etc.)
Sings sometimes - Tia, Pippy (usually just in groups, not sure I've seen them sing on their own)
Never sings - Bianca, Ribbot, Kiki, Biskit (i may have seen Biskit sing once but I have never seen Kiki, Ribbot, or Bianca sing)
I've seen Lolly, Tybalt, Marshal, Katt, Fang, Bangle, Bianca and Olaf sing. It's just been who's in the area haha I don't think it has any code that specifies which do and which don't
sydney loooves to sing! it's absolutely adorable, she's doing it all the time. sprocket, renee, and hopper, too! bianca sings in groups, she might sing solo as well but i personally haven't noticed it. she had the cutest little trio performance with sydney and hopper the other day!
I have seen a majority of my villagers sing (Molly, Beau, Marina, Dom, Judy, Audie, Marshal), with Marshal being the repeat offender who literally sings at every hour, everywhere lmao (not that I'm complaining)
The remaining ones I have yet to witness are Agnes, Merengue, and Zucker
Let's see, there's Marshal and Lolly who do it a ton, Rod did it like 3 times, O'Hare, Tom, Snake, Kiki, and Sherb all did it once. Raymond and Maple have not sang yet.
Tom was singing in Rosie's house when I had her. Snake was singing in a duet with Rod. Sherb was singing with Marshal and Skye (when I had her), O'Hare sang to Marshal and Rod, and Kiki sang to Tom. Lolly and Marshal do solos all the time but they did sing in a duet once.
Ursala (uchi) she's the only one I can specifically recall singing. I might have seen others singing, bur Ursala is the only one that always seems to be singing. Dancing on the other hand, I have quite a few that will dance in front of the stereo B)
edit: she definitely sings solo and I think I might've seen her singing with someone else once or twice. If I sit there and watch them they stop singing ;_;
Roscoe & Sprocket are the two main singers on my island, Roscoe is ALWAYS singing. I caught him singing on the beach once. I have seen Maddie, Mira, Molly & Winnie singing before though!
cyd and static are always singing either by themselves, to my flowers or to others. i love their more unique deeper voices makes a nice counterpoint to the others, my only other singer was charlize i think twice in the month i had her. i just watched my hubby's shelden singing to a crowd in his plaza with miri breaking off from exercising to join in on the chorus very now and then. i forgot to add zucker likes to sing a bit as well, but usually off on his own.