A ton of music stars will be in attendance at Super Bowl LVIII at Allegiant Stadium in Las Vegas on Sunday. And that's not even including Taylor Swift, the megastar who could be there in support of her boyfriend, Kansas City Chiefs tight end Travis Kelce.

Usher is the headlining performer of the halftime show, and he'll likely bring some special guests along. Post Malone will sing a pregame rendition of "America the Beautiful."

Who's performing the national anthem? That will be country music legend Reba McEntire belting out "The Star-Spangled Banner" before kickoff between the Kansas City Chiefs and San Francisco 49ers.

Like every aspect of the Super Bowl, the national anthem has various related prop bets. Think you know how McEntire's rendition will go? Then you could potentially win some money.

The over/under for the length of the national anthem is set at 90.5 seconds (per FanDuel). It's more likely to be under (-128; bet $128 to win $100) than over (+102; bet $100 to win $102) based on the line.

According to Mary Omatiga of NBC Sports, there hasn't been a Super Bowl national anthem that took less than 1 minute and 49 seconds over the previous 11 editions of the game. But the sportsbooks seem to think McEntire will get through the song faster than recent performers.

It's not too surprising the over/under has been set lower. Nate Chute of The Oklahoman pointed out that McEntire had quicker performances of the anthem at the 1985 World Series (66 seconds) and the 1997 World Series (83).

At a Dallas Cowboys home game in 1999, McEntire performed the anthem in exactly 90.5 seconds, according to Chute.

So it's possible McEntire will again get through the song relatively quick. Or she may take a bit longer while soaking in the atmosphere at the first Super Bowl to be held in Las Vegas.

Because of that, it might be the better bet to take the over for the 68-year-old McEntire.

This is the Super Bowl, and it will be the biggest stage at which the national anthem can be performed. Others have slowed down while belting out the notes in recent years.

According to Sports Betting Dime, there are other available prop bets related to McEntire, too. Those include if her outfit will have sequins, whether she'll wear a cowboy hat, the primary color of her boots and more.

That shouldn't be surprising, either. When it comes to the Super Bowl, there's a prop bet for almost anything.