As of April 2021, the single has sold over 10,000,000 copies, being certified Diamond in the US. After its eighth week at number one, it was knocked off by ' Perfect' by Ed Sheeran and Beyoncé. 'Rockstar' topped the Hot 100 for eight weeks, the longest run at number one for a hip hop song in 2017. As of October 2017, the single has sold 165,458 copies in the United States. It stayed behind ' Bodak Yellow' for three consecutive weeks before reaching the top spot in its fourth week. It debuted at number two behind Cardi B's ' Bodak Yellow', breaking the single week streaming record on Apple Music with over 25 million streams becoming Post Malone's third top 20 hit, following his debut single, ' White Iverson' and his top 10 hit ' Congratulations'. The song reached number one on the US Billboard Hot 100, becoming Post Malone and 21 Savage's first number-one song. As of April 2022, the video has received more than 970 million views on YouTube. Pitchfork noted that the video references the Japanese action film Lady Snowblood. The video features Post Malone in a room fighting against a gang of men with samurai swords, and ends with Post Malone and 21 Savage covered in blood. The official music video, directed by Emil Nava, was released on Post Malone's Vevo YouTube channel on November 21, 2017. Some called it a 'clever marketing scheme', while others believed it was a trick or a loophole. Therefore, the song was able to receive equivalent downloads without featuring the entirety of the song, which some attributed to its number-one spot on the Hot 100. The unofficial YouTube video for the track's audio, released by Republic Records, is a three-minute-and-38-second loop of solely the song's chorus.

Post Malone posted a snippet of himself playing the track in the studio via Twitter on December 24, 2016. The song was nominated for Record of the Year and Best Rap/Sung Performance at the 61st Annual Grammy Awards. It became both Post Malone and 21 Savage's first number-one single in all the countries mentioned. The track reached number one on the US Billboard Hot 100, and reached the top spot in several other countries, including Australia, Canada, Greece, Portugal, Romania, Ireland, New Zealand, Sweden, Norway, Finland, Denmark and the United Kingdom. The artists co-wrote the song with Carl Austin Rosen, and producers Louis Bell and Tank God.

It was released on September 15, 2017, by Republic Records as the lead single from Malone's second studio album Beerbongs & Bentleys (2018).

' Rockstar' (stylized in all lowercase) is a song by American rapper and singer Post Malone, featuring vocals from Atlanta-based rapper 21 Savage. Single by Post Malone featuring 21 Savage 2017 single by Post Malone featuring 21 Savage 'Rockstar'

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