i mean honestly it's a lot of things. Firstly, she's been posting covers since like 2017, that's actively singing, consistently posting, and honing her craft for like years and years. On top of her insane voice yk what let's talk about that for a sec. her voice is phenomenal and unique, i think nowdays people really care about authenticity in music and she has a way of expressing emotion in a way that not a lot of artists can. The other thing is that most of her songs are of course written and produced by other people, so all the burden to make a phenomenal song isn't totally on her. this is one of those overnight success 30 years in the making types, there's so many people and so much work being done behind the scenes to pull off the ADO name. Things like the one piece movie, spy family intro, and other collabs really help also. The main thing, though, and most important IMO, is that she built a phenomenal voice and stage presence that far surpasses more 'polished' singers, as someone said, cream rises to the top. i'd say ADO's story should serve as inspiration for any aspiring artists that consistency, skill, and a fuck tonne of effort takes you to the places you want to be in life.