[motogpjimbo]

I think the solfege for Baby Shark would actually start with sol la do, or in the key of C, G A C. Because the phrase eventually ends by dropping down one semitone on the final "shark", which would end up being F# (Fi!) if you started at the root of the scale. The initial movement from G to C, or sol to do in solfege, is very common and something you spot everywhere once you're aware of it.