Two of the hottest acts in music just happened to be in Australia at the same time and the result was one epic night. During Rae Sremmurd's recent show Down Under, Justin Bieber popped by and turned up with the duo. He even performed his hit single, "What Do You Mean?"

Early Wednesday morning, Slim Jimmy and Swae Lee sent out a tweet to Bieber inviting him to “pipe up” with them.

Apparently, their call was answered and the Bieb showed up to rock the crowd. While on stage, he drank some Hennessy and sang along during “No Type.”

As previously reported, the "No Flex Zone" duo is currently working on their sophomore album, SremmLife 2.

"New album coming in like December," Swae Lee told Bay Area radio station KMEL at the BET Awards this summer.

More recently, frequent collaborator Mike WiLL Made-It confirmed an album is in the works via Twitter. Rae Sremmurd released their debut album at the beginning of the year back in January. The album features hit singles including "No Type," "This Could Be Us" and "Throw Sum Mo" featuring Nicki Minaj and Young Thug. SremmLife debuted at No. 1 on Top R&B/Hip-Hop Albums, selling 34,000 in the week ending Jan. 11, according to Nielsen Music.

Aside from working on their own music, the brothers have also been featured on Ty Dolla $ign's "Blasé" with Future and "Burn Slow" by Wiz Khalifa.

Justin Bieber, on the other hand, just revealed the title of his forthcoming album. Purpose is set to be released on Nov. 13. He announced the title in a series of tweets accompanied with a new visual. The album will be Bieber's first new project in three years. His last album, Believe, featured the singles "Boyfriend" and "As Long As You Love Me."

Hopefully this newly minted friendship will produce some collaborations. Check back with us for updates.

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