Video: Selena Gomez dance-off with 7-year-old... battling rare disease

Just before her concert in Louisville, Kentucky this week, Selena Gomez took part in an impromptu dance-off Wednesday with an adorable 7-year-old girl named Audrey Nethery, with Diamond-Blackfan anemia, a rare bone marrow disease.

Follow Emirates 24|7 on Google News.