After leaving college, Malone moved to Los Angeles, California, with his longtime friend Jason Stokes. He created his stage name, which would later be rumoured to be a reference to the professional basketball player Karl Malone, but Malone later explained in an interview with The Breakfast Club that "'Post' is [his] last name, and [he] just made 'Malone' up." He met 1st and Rich from FKi and Rex Kudo who did production work on several of Malone's tracks, one of which was titled "White Iverson". Malone recorded the song two days after he wrote it. "White Iverson" is, in part, a reference to the professional basketball player Allen Iverson. In February 2015, upon completion, it was uploaded to Post's SoundCloud account. On July 19, 2015, Malone released a music video for "White Iverson", which has received over 390 million views since its release. After the initial success of "White Iverson", Post released several other popular singles through his SoundCloud, including "Too Young", "What's Up" "Patient" and "Tear$", all of which experienced similar levels of popularity.

After hitting one million views within a month of releasing "White Iverson", Post quickly garnered attention from record labels. In August 2015, he signed a recording contract with Republic Records. Since his breakthrough hit song, Malone has worked with a number of prominent rappers such as 50 Cent, Young Thug, and Kanye West, among others. Malone began his friendship with Canadian singer and songwriter Justin Bieber, which led to Malone being an opening act for Bieber's Purpose World Tour. On April 20, 2016, Malone premiered his new single, "Go Flex" on Zane Lowe's Beats 1 show. On May 12, 2016, he released his first full-length project, a mixtape, titled August 26. On June 9, 2016, Malone made his national television debut on Jimmy Kimmel Live!, performing "Go Flex".

In June 2016, XXL editor-in-chief Vanessa Satten revealed Post Malone was considered for XXL's "2016 Freshmen Class" magazine cover, but she was "told by his camp that he wasn't paying attention to hip hop so much. He was going in more of a rock/pop/country direction." However, Malone denied these claims, saying, "My love of music shouldn't ever be questioned. I shouldn't be chastised for expressing myself in whichever way I see fit." He then went on to explain that his latest mixtape as well as his upcoming album were both hip-hop: "I have a hip-hop album coming out in August. I made a HIP HOP mixtape promoting my HIP HOP album." The title of his debut mixtape, August 26, was a reference to the scheduled release date of his debut studio album Stoney. On August 27, 2016, Malone issued an apology for the album being late. It was available for pre-order on November 4, and was finally released on December 9.

beerbongs & bentleys, his second album, was released in 2018 and hit #1 on the Billboard 200. The album included the single "Psycho," featuring Ty Dolla Sign, a song that reached number one on the U.S. charts. Despite its popularity, "Psycho" was named the worst song of 2018 by Time Magazine.

Rapper, Rap & Hip Hop Rap, Entertainers, Musician, Artists, Entertainment Industry, Music, Musical Performance, Hip Hop, R&B, R & B Music,