Bruno Mars owes a debt of gratitude to ROSÉ for letting him perform “APT.” with her at a recent BLACKPINK tour stop. In a post about the performance on Instagram, the American singer-songwriter thanked his duet partner and joked that the stint had helped him pay off his long-rumored gambling debts.

This time, ROSÉ and Bruno Mars met up somewhere much bigger than an "APT.," joining forces at SoFi Stadium for a surprise performance of their hit single during BLACKPINK‘s run of DEADLINE World Tour shows in Los Angeles.