served as a de facto national anthem. Following the War of 1812 and subsequent U.S. wars, other songs emerged to compete for popularity at public events, among them "America the Beautiful", which itself was being considered before 1931 as a candidate to become the national anthem of the United States. In the fourth verse, Key's 1814 published version of the poem is written as, "And this be our motto-"In God is our trust!"" In 1956 when 'In God We Trust' was under consideration to be adopted as the national motto of the United States by the US Congress, the words of the fourth verse of The Star Spangled Banner were brought up in arguments supporting adoption of the motto. Modern history Performances The song is notoriously difficult for nonprofessionals to sing because of its wide rangea twelfth. Humorist Richard Armour referred to the song's difficulty in his book It All Started With Columbus: Professional and amateur singers have been known to forget the words, which is one reason the song is sometimes pre-recorded and lip-synced. Pop singer Christina Aguilera performed wrong lyrics to the song prior to Super Bowl XLV, replacing the song's fourth line, "o'er the ramparts we watched were so gallantly streaming", with an alteration of the second line, "what so proudly we watched at the twilight's last gleaming". Other times the issue is avoided by having the performer(s) play the anthem instrumentally instead of singing it. The pre-recording of the anthem has become standard practice at some ballparks, such as Boston's Fenway Park, according to the SABR publication The Fenway Project. "The Star-Spangled Banner" has been performed regularly at the beginning of NFL games since the end of WWII by order of NFL commissioner Elmer Layden. The song has also been intermittently performed at baseball games since after WWI. The National Hockey League and Major League Soccer both require venues in both the U.S. and Canada to perform both the Canadian and U.S. national anthems at games that involve teams from both countries (with the "away" anthem being performed first). It is also usual for both U.S. and Canadian anthems (done in the same way as the NHL and MLS) to be played at Major League Baseball and National Basketball Association games involving the Toronto Blue Jays and the Toronto Raptors (respectively), the only Canadian teams in those two major U.S. sports leagues, and in All Star