Sharon is often seen as the kindest judge, as she almost always says she's sorry if an act gets rejected during the auditions. Despite this she will gets angry if one insults her husband (Ozzy Osbourne), even proceeding to use fairly strong curse words. She mentions her husband frequently, and she is usually the last one to buzz an act in Season 2, Season 3, and Season 4.
She was formerly a judge/mentor on the UK version of The X Factor. She has 2 top-3 placings as a mentor: a win in series 10 (2013) with Sam Bailey and a second place in series 13 (2016) with Saara Aalto.