Most fans of Cheryl's are wondering if the girl is Cheryl's secret twin sister, or Cheryl herself.
Meanwhile Sian says she doesn't see the resemblence, saying "’It's been crazy, but really nice. I’m not convinced I look like her enough. If I had people coming up to me all the time, telling me I looked like her, then I would think about being a looka ike, but it’s not where my passion lies.
Which celeb do you look like, ONTD?