Selena Gomez laughed off a comment on her "mustache." In a video she shared via Instagram on Tuesday, December 16, Gomez, 33, explained why it might look like she has a shadow on her upper lip while going makeup-free. "Someone made me laugh because they asked me, 'How do you shave your mustache?'" she said. She then confirmed that she doesn't have an actual mustache, but the shadow is actually "melasma." "I take care of it and treat it, but yeah, it's there," the Only Murders in the Building star added. Gomez noted that she wasn't upset at the fan who asked. "I totally get it," she said.