On top of quickly becoming the biggest single of his recording career, the Mike WiLL Made-It-produced record is now the only solo rap record released in 2017 to sell more than one million pure copies (non-streaming equivalents).
Per Chart Data:
DJ Khaled's "I'm the One" has also sold more than one million pure copies, though, the song features multiple guests (Justin Bieber, Chance The Rapper, Quavo and Lil Wayne).
"HUMBLE." is the lead single off Lamar's 2x Platinum-certified album DAMN. If and when Lamar and his labels (TDE, Aftermath and Interscope) decide to submit an application to the RIAA for "HUMBLE." to also become certified—which, including streaming equivalents is probably pushing 3x Platinum certification—it will be his first Platinum single certification since To Pimp a Butterfly single "Alright" was certified this past February.