AceShowbiz - Post Malone is doing fine. The "Sunflower" hitmaker appears in good spirits as he stops to chat to fans at an airport after he sparked concerns over his well-being with his bizarre stage act.

On Friday, February 10, the 27-year-old singer arrived at Perth Airport in Western Australia as he continued his Australian tour with Red Hot Chili Peppers. In footage surfacing online, he could be seen stopping his black car to chat to a group of fans. He even leaned out the window to take selfies with them.

A few days earlier, skinny-looking Posty sparked concerns among his fans when performing in Sydney. A video showed him mouth-to-mouth with the microphone laying on the stage as he contorted his body in a strange and zoned-out fashion. Other clips saw him pulling at his clothes while performing for fans.

There's also a clip of him drinking beer from a random fan's worn shoe. In the footage, he clutched a low-top white sneaker while pouring the contents of a plastic red cup into it. "How did we get here?" he asked the crowd, who started a "chug" chant of encouragement before he knocked back the soiled beer. Afterward, he bowed for the crowd as they cheered him on and the soggy sneaker was returned to its owner.

Thankfully, TMZ reported that Post Malone is "not on drugs or sick." Sources told the news outlet that the "Psycho" crooner previously gained some weight for a movie role, but he's since been on a strict diet and working out.

Also responding to fan concerns over Posty's weight loss was his dad, Rich Post. Responding to an Instagram post questioning the musician's health, Rich wrote, "Healthiest he's been in years! Mentally and physically."

The strange stage performance came after Posty spent most of last fall on his "Twelve Carat Tour", which featured some wild moments of its own including Post injuring himself onstage on multiple occasions.