What song did Jennifer Hudson win the Grammy for?

Jennifer Hudson has won multiple Grammys throughout her career, but one notable song she won an award for is "Spotlight".

Jennifer Hudson won the Grammy Award for Best R&B Performance by a Duo or Group with Vocals for the song "Spotlight" at the 52nd Annual Grammy Awards in 2010. The song was part of the soundtrack for the 2006 musical movie "Dreamgirls", where Hudson played the role of Effie White.