Camila Cabello
She launched a solo career in December 2016, leading to successful songs like "Crying in the Club" and "Havana", which became her first number-one song in the US. Havanna was number 1 in the UK for four weeks and it still is in the charts.   Her debut solo album, Camila, was also at the top of the charts the same week as "Havana" did, making her only the third artist to have their first album and a single at the top of the charts at the same time. She has a younger sister.