We gotta say too - not a bloody bad effort.
Post Malone - a singer/rapper usually found on radio stations like ZM or Mai FM - caught the attention of Sublime yesterday, who shared a video to their Facebook page of him performing their iconic track, Santeria.
Malone is on stage alone with a guitar, and starts strumming along to the tune before belting out the vocals.
The band were clearly impressed with his efforts, posting the caption,
Post Malone knows what's up!
It's not the first time Post Malone has channelled his inner rockstar - here's him performing Nirvana "All Apologies" at another concert last year.
What do you think of his covers - rate it or hate it?