Crossword puzzle clue "singer whose first 1 single was 2006's sos"

Singer whose first #1 single was 2006's "SOS"

British pop singer Allen whose first hit was 2006's "Smile"

First sound in an SOS call

Singer whose last album broke records for single-week sales

Singer Miller whose debut single "Young Blood" won a 2015 Radio Disney Music Award for "Best Song to Rock Out to With Your BFF"

Single-named singer whose newest album is titled "Beautiful Trauma"

Single-named singer whose new album of covers is titled "Standards"

Band whose first hit single was "The One I Love"