Kelly Osbourne's "before and after" transformation has been widely discussed as a dramatic change in her appearance primarily due to significant weight loss and aesthetic treatments. She underwent gastric sleeve surgery resulting in an 85-pound weight loss and has credited non-surgical treatments like EM Sculpt and EM Face to tighten her body and facial skin. She denies having major plastic surgery, except Botox and injections to treat TMJ, which slimmed her jawline. However, fans and critics speculate about possible cosmetic procedures such as buccal fat removal, fox-eye lifts, and lip enhancements, noting her much more sculpted, smooth appearance and changes in facial features. Her transformation is also marked by changes in hairstyle and makeup style. This striking change has elicited strong reactions online, with some describing her as "unrecognizable" compared to her former goth teenage look.