Camila Cabello’s second studio album, “Romance,” is filled to the brim with emotion. With its 14 tracks, the project succeeds in making all the lonely hearts feel even lonelier as Cabello sings about her own experiences with love and loss.

LÉON, a little-known pop artist from Sweden, kicked off her first U.S. tour at The Sinclair in Cambridge on Wednesday night. The show was completely sold out. By the end of the evening, it became...