BACK IN THE BALLROOM
Artem Chigvintsev is back in his old stomping grounds ... hanging with his "Dancing with the Stars" family amid a rough patch in his life.
Artem surfaced Tuesday night in Los Angeles for the taping of the celebrity dance competition show's 500th episode ... but he wasn't on the dance floor, he was in the crowd.
The 'DWTS' alum's former colleague Peta Murgatroyd posted a video showing Artem dancing in the stands as the episode films .