Early career and The Voice (2014–2017)

In 2014, Wallen competed on season six of the music competition program The Voice. He auditioned with the song "Collide" by Howie Day. Judges Shakira and Usher complimented his stylings, and Wallen joined Usher's team. He was later taken by Adam Levine's team after his second round, and later eliminated during the playoffs.^[16] Wallen was disappointed by the setback, but doubled down on his ambition: "Some things in life are out of your control. Being the best you can be isn't. I didn't feel like I was the best I could have been. So I practiced harder."^[17] Still, The Voice was instrumental in raising Wallen's profile, and he began to establish connections in the music industry.^[15]

While in California to appear on The Voice, Wallen began working with Sergio Sanchez of Atom Smash, a vocal coach on the program. Wallen relocated to Nashville to further his career, and he and Sanchez started a temporary band: Morgan Wallen & Them Shadows.^[15] Sanchez introduced Wallen to Bill Ray and Paul Trust of Panacea Records.^[18] In 2015, Wallen signed to Panacea Records where he was joined by Dominic Frost on guitar and released an EP Stand Alone on August 24, 2015. "Spin You Around" was Wallen's debut single under Panacea Records; it was later certified gold by the Recording Industry Association of America (RIAA) in 2021.^[19]

In 2015, Wallen's manager, Dirk Hemsath of Working Group Artist Management, sent a demo of Wallen to Big Loud Shirt's Seth England, who had Wallen audition for his partners in Big Loud Records. They signed Wallen to the label and the publishing company,^[18] who began pairing his songs with other artists. That year, he released his debut single "The Way I Talk";^[20] his first music video for the song followed in 2017.^[21] Wallen co-wrote the A Thousand Horses's single "Preachin' to the Choir",^[16] Dallas Smith's "The Fall",^[22] as well as Jason Aldean's "You Make It Easy" with Florida Georgia Line's Tyler Hubbard, Brian Kelley, and Jordan Schmidt.^[23] He joined Florida Georgia Line on their Dig Your Roots Tour.^[16] He collaborated with the group on the single "Up Down", his first song to reach the top five of Billboard's Hot Country Songs chart.^[24]

Mainstream success (2018–present)

At the outset of his career, Wallen underwent a personal stylistic shift, adopting a distinctive mullet and a look that Kelefa Sanneh, profiling Wallen's rise in a piece for The New Yorker, described as "Everyman rock star" and "not just a singer but a character."^[14] Wallen had decided to adopt the retro hairdo after seeing a younger photo of his father with the cut.^[17] Wallen's debut studio album, If I Know Me, was released on April 27, 2018,^[25] with its third single, "Whiskey Glasses", becoming his biggest success yet.^[26] The song reached the top spot on both the Hot Country Songs and Country Airplay charts; it also marked his top 40 appearance on the all-genre Hot 100 ranking, where it placed at number 17. It was Billboard's 2019 top Hot Country song and Top Country Airplay song.^[27] Sanneh characterized "Whiskey Glasses" as his signature song and a "perfectly constructed ode to a woman and a drink, lost and found, respectively."^[14] In 2019, Wallen joined Florida Georgia Line on their Can't Say I Ain't Country Tour.^[28] His next single, "Chasin' You", was serviced to radio in July 2019 and peaked at number two on the Hot Country Songs chart;^[29][11] like its predecessor, it captured the top spot on the overall year-end tally for 2020.^[17] In August 2020, If I Know Me reached No. 1 on the Top Country Albums chart after a record-breaking 114 weeks.

Wallen's profile continued to rise, with a growing following on platforms like TikTok, and he developed into an unwitting sex symbol.^[14] Wallen appeared on the cover of Billboard, whose headline read: "Is Morgan Wallen Country's Next Global Star?"^[17] At the start of the COVID-19 pandemic, Wallen found himself with more time to write and record material, which developed into his sophomore album, the double-disc Dangerous: The Double Album (2021),^[30] which showcases a mix of country and R&B/pop balladry.^[15] Dangerous was an immediate blockbuster: it debuted atop the US Billboard 200 and the Canadian Albums Chart;^[31][32] it would remain atop the Canadian chart for four consecutive weeks, and the US chart for six consecutive weeks, marking the first new album from a country artist to do that since Garth Brooks' The Chase in 1992.^{[33][34][35][36]} Its singles—"More Than My Hometown", "7 Summers", "Sand in My Boots" and "Wasted on You"—were record-breaking hit songs that pushed Wallen farther into the national conversation. "7 Summers" earned him his first top 10 on the Hot 100, debuting and peaking at number six,^[37] and was also chosen by Time as one of the best songs of the year.^[38] Wallen soon became the first artist to ever chart six songs within the top 10 of Hot Country Songs chart at the same time in the week after his album's release;^[39] likewise, the album charted 23 tracks on the Canadian Hot 100,^[40] and 19 tracks on the Hot 100 in the U.S.^[41]