Lady Gaga addresses her struggles with mental illness on multiple Chromatica
tracks. She told American Songwriter
magazine that "Fun Tonight" is actually "one of the saddest songs on the album," as she's singing it to herself.
"I was kind of incapable at certain moments of being happy for other people when they were having fun," she explained. "And I would sit with myself and think, 'I don't care how many people I see dancing or smiling right now. I cannot have fun.' Then after I wrote the record, I listened back to it and I said, 'I'm singing to myself.'"