Female vocal artist.
Certainly independent (no band association).
Relatively new in popularity.
Catchy up-beat tempo with unusually high notes (which makes it so catchy).
I don’t know the words, but I can fill in some meaningless lyrics to get the basic feel of the chorus.
“You know I worry bout you-ou-ou-ou, (super high oo’s)
I really worry bout you-ou-ou-ou, (just as high)
And do you worry bout me too. Oo oo oo oooo (lower)
Nah nah nah; Nah nah nah. Ooo.”
Let me know if it sounds familiar.