India, July 16 -- South Korean girl group Blackpink's recent Los Angeles gig saw musician Bruno Mars make a surprise appearance. The crowd erupted as he accompanied singer Rose on stage. They performed their collaboration APT., which was released last fall and became a fan fave. The act became one of the most talked-about moments of the night, which also left social media abuzz. A user wrote on X, "The first time they sing this banger together at an arena live. Chills without a doubt. People must have gone wild (sic)." Another user posted: "I think we can all agree that this is an iconic moment (sic)." Bruno and Rose were seen in coordinated outfits for the act that ended with a confetti shower. Their act came amid the North American leg of Blackpink's Deadline Tour. HTC...