The NFL officially announced Thursday that Atlanta's own Gladys Knight will sing the national anthem at the Super Bowl Feb. 3, in Atlanta.

"I am proud to use my voice to unite and represent our country in my hometown of Atlanta," the seven-time Grammy Award-winning singer said in a statement.

In the world of Super Bowl prop bets, the national anthem is the first domino to fall in a string of betting options.

In the case of the anthem odds are you can bet on something — the length of the song; any flubs or omitted words; the color of the singer’s attire; the use of a mic stand.

Knight presents an interesting choice for Vegas oddsmakers.

The betting site oddsharks.com has tracked singers' run time on "The Star-Spangled Banner," dating back to 2006.

Most have kept their renditions to between 1:30 and 2:10. The lengthiest by far came in 2013 by Alicia Keys, who sang for 2 minutes, 35 seconds.

In the case of Knight, odds are the 2-minute mark could be a stretch. The over/under now stands at 1 minute, 50 seconds, according to BetOnline.

In recent years, the under has been the payoff bet. Are you willing to put money on it?