Boyz II Men singing the U.S national anthem, tears flowing from players and fans

Mariah Carey performs a special emotional halftime tribute for Michael Jordan at the 2003 NBA All-Star Game in Atlanta

J Cole Shout out any Clippers fans we gon pray for y'all tonight Crowd Boos

The Mavericks crowd sings Na Na Hey Hey Kiss Him Goodbye as the Lakers get swept in a Game 4 blowout during the 2011 Western Conference Semifinals

David Stern Weve had to explain to our international audience that the boo is an American sign of respect

2014 Team USA is forced to watch The Haka and then beats New Zealand by 30 points

Bulls announcers react in disgust as Denzel Valentine airballs a deep three pointer