The singer-songwriter is the first artist since Iggy Azalea with two No. 1s from a debut full-length album.

Alessia Cara crowns Billboard's Pop Songs radio airplay chart (dated Feb. 4) with "Scars to Your Beautiful." As the song lifts 2-1, it becomes her second Pop Songs leader; her breakthrough hit "Here" led a year ago to the week, topping the Feb. 6, 2016, tally. Both tracks are from her first LP, Know-It-All.

Cara is the first artist to notch two Pop Songs No. 1s from a debut full-length since Iggy Azalea. The rapper's The New Classic yielded "Fancy" (featuring Charli XCX; three weeks at No. 1) and "Black Widow" (featuring Rita Ora; one) in 2014.

A second Pop Songs No. 1 follows the Rule Breaker honor that Cara earned in December at Billboard's 2016 Women in Music celebration, claimed in part for the novel, anti-party "Here" storyline. Meanwhile, at the MTV Video Music Awards pre-show in August, she performed "Scars" without wearing makeup, saying, "I'm not doing it just to be a rebel. I want to show people alternatives to [conventional] standards of beauty. I always find power in struggles. You end up a lot happier that way."

All charts will update tomorrow (Jan. 24) on Billboard.com.