Carey's sister desperate to heal rift

Mariah Carey's sister, who has not spoken to the star in four years, is desperate to heal their rift.

The 42-year-old singer and her elder sibling Alison Carey - a former prostitute and drug addict - have spoken just once since 1994 but Alison hopes they can reconcile as she wants to meet her niece and nephew, twins Moroccan and Monroe, who turned one last month.