Staples Center measures  of total space, with a  by  arena floor. It stands  tall. The arena seats up to 19,067 for basketball, 18,340 for ice hockey, and around 20,000 for concerts or other sporting events. Two-thirds of the arenas seating, including 2,500 club seats, are in the lower bowl. There are also 160 luxury suites, including 15 event suites, on three levels between the lower and upper bowls. The arenas attendance record is held by the fight between World World Boxing Association Welterweight Champion, Antonio Margarito and Shane Mosley with a crowd of 20,820 set on January 25, 2009. ;Star Plaza Outside the arena at the Star Plaza are statues of Wayne Gretzky and Magic Johnson, although both played at The Forum (Inglewood, California), where the Kings, Lakers and Sparks previously played. A third statue of boxer Oscar De La Hoya was unveiled outside Staples Center on December 1, 2008. On April 20, 2010 a fourth statue of the late long time Lakers broadcaster Chick Hearn, behind a Laker desk with a chair for fans to sit down for a picture, was unveiled. A fifth statue of the Laker legend Jerry West dribbling was unveiled on February 17, 2011. A sixth statue of Lakers player Kareem Abdul-Jabbar was unveiled on November 16, 2012.  A seventh statue of former Kings Hall of Fame left wing Luc Robitaille was unveiled on March 7, 2015. An eighth statue of Lakers center Shaquille ONeal was unveiled on March 24, 2017. On January 13, 2018 a ninth statue, of legendary Kings announcer Bob Miller (sportscaster), was unveiled. A tenth statue of Laker legend Elgin Baylor was unveiled on April 6, 2018.
Question: Which category of event seats the least number of people?
Answer: ice hockey