India, Jan. 19 -- Singer-songwriter Katy Perry's dramatic weight loss has left many fans concerned, with her noticeably thinner frame drawing attention. During her December 14 performance at the Jingle Ball, the 40-year-old appeared slimmer than ever. However, sources close to Perry clarified to RadarOnline that her weight loss isn't the result of dieting but rather the overwhelming stress she's endured throughout a challenging 2024....