6LACK's stock is skyrocketing in the wake of the release of his debut album Free 6LACK two months ago. His profile continued to rise Tuesday night when The Weeknd made a surprise appearance at The Roxy in Los Angeles.

Earlier that day, The Weeknd tweeted out, "poppin' up somewhere in LA tonight." True to his word, he came out at 6LACK's show to perform "Starboy" and "Reminder." This came one day after The Weeknd posted a picture of 6LACK and XO artist Nav to his Instagram. Clearly, Abel and 6LACK are up to something...

Watch footage from The Weeknd's surprise performance below.