"Ex's &amp; Oh's" was released on September 23, 2014, as the album's lead single. It first found success in the rock genre, where it became the second song by a solo female artist in the past twenty years to reach the top position of the "Billboard" Alternative Songs airplay chart and led the magazine's Hot Rock Songs chart for 10 consecutive weeks in mid-2015. The song later crossed over to a mainstream audience and became a number-one hit on the Adult Pop Songs chart in addition to spending one week in the top 10 of the all-genre "Billboard" Hot 100. "Ex's &amp; Oh's" received two nominations at the 58th Grammy Awards: for Best Rock Performance and Best Rock Song.