Camila Cabello
Cabello released several singles throughout 2017.  Her most successful, "Havana", with rapper Young Thug, was released in August of that year, as the lead single from her first solo album.  The song was at the top of charts in Canada, Australia, and the UK.  After spending seven weeks at number two in the US, the song reached number one on the Billboard Hot 100 for the week ending January 27, 2018.