The mother of the actress Gabourey Sidibe, she spent decades singing full time as a busker in the New York City subways.

Alice Tan Ridley, a singer who shared her powerful vocals on 'America's Got Talent' and was the mother of Oscar nominee ...

The actress's mother performed in NYC subways for 30 years before appearing on "America's Got Talent" in 2010.

Singer Alice Tan Ridley, who's the mother of Oscar nominee Gabourey Sidibe, has died at 72.  Ridley, who appeared on NBC's ...

Alice Tan Ridley, who competed on America's Got Talent in 2010 after decades of performing in New York City subway stations, ...

Alice Tan Ridley, tmother of actor Gabourey Sidibe and a singer who found national fame in her late 50s on America's Got ...

Alice Tan Ridley, who spent three decades entertaining subway riders in New York City as a gospel and R&B singer before ...