Beyoncé won six Grammy Awards at one ceremony in 2010.
At the 52nd Annual Grammy Awards, held on January 31, 2010, Beyoncé became the first woman to win six awards in a single evening. The ceremony recognized work connected with her 2008 album I Am... Sasha Fierce and its singles. Her wins included Song of the Year for “Single Ladies (Put a Ring on It),” Best Female Pop Vocal Performance for “Halo,” and Best Contemporary R&B Album.
The six-award total was also the largest haul by any artist at one Grammy ceremony at that point. The record later changed as other artists matched or surpassed it, so the historical claim must be understood as applying to the 2010 ceremony and the record at that time. Beyoncé’s 2004 Grammy night was also highly successful, but it was not the six-award event.