Americans bet billions of dollars annually on the Super Bowl, but not all of it is directly on the game itself -- or even anything to do with football. As the New England Patriots prepare to take on the Atlanta Falcons Sunday at Super Bowl LI in Houston, here are some of this year's more unusual prop bets.
All lines are courtesy of Bovada.
Also Read: How 13 Offbeat Super Bowl Prop Bets Paid Off, From Lady Gaga to Donald Trump (Photos)
How long will it take for Luke Bryan to sing the national anthem?
Over/Under: 2 minutes 9 seconds
What color will Lady Gaga's hair be when she comes on stage for the halftime show?
Any other color: 5/2
Will the word "Lacrosse" be said on TV during live broadcast? (Patriots wide receiver Chris Hogan played college lacrosse)
What color will the liquid be that is poured on the winning coach?
Which song will Lady Gaga play first during the halftime show?
Born this Way: 9/4
Bad Romance: 5/2
Edge of Glory: 6/1
Poker Face: 10/1
Just Dance: 10/1
Any Other Song: 11/10
How many times will Gisele Bundchen be shown on TV during the broadcast? (Bundchen is married to Patriots quarterback Tom Brady)
Over 1½: +110 (11/10)
Under 1½: -150 (2/3)
What will Luke Bryan be wearing when he starts singing the national anthem?
Blue jeans: 1/2
Any other pants or shorts: 3/2
Will "Houston we have a problem" be said on TV during the broadcast?
How many times will Trump be said on TV during the broadcast?
Will Luke Bryan forget or omit a word from the national anthem?
What will be higher on Super Bowl Sunday?
Tom Brady rushing yards: +150 (3/2)
Donald Trump's interview with Bill O'Reilly in minutes: -200 (1/2)
How many times will "Matty Ice" be said on TV during the live broadcast? (The unofficial nickname of Falcons quarterback Matt Ryan)
Who will the Super Bowl MVP mention first?
Donald Trump: 20/1
Does not mention anyone above: 5/2