A halftime show that Rihanna promises will be “jam-packed” will sit at the center of the celebrity supplements to Super Bowl 57. But the 13-minute mini-extravaganza, her first live event in seven years, is only one part of the entertainment sideshow surrounding Sunday's big game between the Philadelphia Eagles and Kansas City Chiefs at State Farm Stadium in Glendale, Arizona. Chris Stapleton, who has dominated country music awards in recent years, will take on the challenge, and scrutiny, of singing the national anthem.

“Axar.az reports the national anthem's not an easy song for singers. It's one that can go horribly wrong as we've seen many times in the past," Stapleton said at a media event during the leadup to the game.

"But if you're gonna do it, this is the place to do it. I'm gonna go out there and play. And play it like I play it.” The length of the anthem has become one of the countless game elements up for betting. Oddsmakers have put the over-under on Stapleton's “Star Spangled Banner” at 2 minutes, 5 seconds.