In January 2019, Morris released the lead single "Girl" from her upcoming second major label studio album of the same name and simultaneously announced a worldwide concert, GIRL: The World Tour, to support the album which was released March 8. The tour began on March 9 in Chicago, and will conclude August 23, 2019 in Canberra, Australia. In March, it was announced that Morris would be forming a group with Brandi Carlile and Amanda Shires called the Highwomen (in reference to The Highwaymen) with the fourth slot being filled by a rotating line-up of guests, such as Sheryl Crow, Chely Wright, Margo Price and Courtney Marie Andrews. A social media post by Shires' husband Jason Isbell hinted that the group had already begun recording with producer Dave Cobb. The Highwomen made their live debut, alongside new member Natalie Hemby on April 1, 2019 at Loretta Lynn's 87th birthday concert performing "It Wasn't God Who Made Honky Tonk Angels". "Redesigning Women" was released on July 19, 2019 as the first single from their self-titled debut album set for release on September 6, 2019.