Complex sentence: The song debuted at number 78 on the US "Billboard" Hot 100, and has since peaked at number 10, earning Puth's second top ten hit and Gomez's sixth.
Split into simpler sentences: The song debuted at number 78 on the US "Billboard" Hot 100, and has since peaked at number 10. This makes it Puth's second top ten hit and Gomez's sixth.