New headcanon list achieved:
After watching that one clip and hearing Tommy sing Sex Sells I actively begun to create a list of SBI+BeeDuo+Therapuffy headcanons so here you go (these are all pertaining to c! or f! characters. No Irl)
Wilbur helped teach Tommy how to sing when they were younger
Wilbur and Tommy went to singing lessons together once Tommy was old enough
Anytime any of the other 3/4 get overstressed or overworked Tommy will hum or lightly sing a song and offer to fix or play with their hair
Tommy switches his singing abilities like a girl changes clothes hot and cold yes and no kind of shit. He goes from angelically singing a beautiful song to unironically screeching out the remix version of the Elmo theme song
Wilbur actively invites Tommy to sing with him whenever he feels up to it and they always sing Wilbur’s songs
If chat gets too loud for Techno Tommy will just start going “JUMP in the Cadillac” and it typically calms them down.
Phil likes to listen to Tommy sing and sometimes hums along anytime he catches the youngest singing
Tommy sings in the shower very loudly like the prick he is
Tubbo didn’t know Tommy could sing for only a little while but eventually found out when Tommy started to sing one of Wilbur’s songs when they were waiting for Pizza Rolls
Ranboo found out from Tubbo that Tommy could sing and then at some point Tommy gradually started humming and then singing around him. He also hums a steady tune when Ranboo gets too worked up to try and help calm him down
In L’Manberg Tommy would always be one of the first to join in singing the Anthem
Wilbur and Tommy tried to teach Fundy how to sing. Ended up like the 2013 viral sensation.
When making drugs in the van Tommy would always sing songs specifically by Kanye
After being exiled to Pogtopia Wilbur and Tommy didn’t sing together as often, but as Wilbur’s mental state continued to decline Tommy pushes for it more
After L’Manberg’s destruction (the first one) Tommy would carry around Wilbur’s guitar but would never sing unless he was completely alone.
During Exile Tommy would hum to himself and make up silly little songs with Ghostbur
As a Therapy Avenue Tommy is told to write songs and sing them either alone or to someone he trusts as a form of venting and expressing himself.
Once Revivebur came back Tommy didn’t sing still, but as the start to get closer again Wilbur will hum and Tommy will half-sing the lyrics.
And finally, Wilburger’s Ranvan’s jingle is created by none other than the little blonde bitch himself