Complex sentence: In the United States, the song reached the top 10 on the "Billboard" Hot 100, peaking at number 8 so far, becoming Sia's highest charting single in both nations as a lead artist.
Split into simpler sentences: In the United States, the song reached the top 10 on the "Billboard" Hot 100, peaking at number 8. It is Sia's highest charting single in both nations as a lead artist.