Leave it to Carrie Underwood to glam up the gridiron.
When football fans tuned in to NBC for Sunday Night Football this past weekend, they were greeted by the country star in a sparkly black cocktail dress and strappy heels as she belted out a fresh theme song.
The song, called "Oh, Sunday Night," is set to the tune of her 2014 Grammy-nominated duet with Miranda Lambert, "Somethin' Bad." It replaces the original lyrics -- which detail a booze-fueled night acting "just like a real-life Thelma and Louise" -- with wholesome words about "America's game": "America's game/ Been waiting all day/ The best of the best have come to play/ The gang's all here/ Let's turn it up/ It's the NFL/ Can't get enough."
Before every SNF game of the 2016-2017 season, fans will get to watch Underwood strut around a massive, computer-generated football stadium as teams exit their bus, fans fill the seats and cheerleaders get warmed up.
This is Underwood's fourth year opening the Sunday night game, since she took over for Faith Hill in 2013. Her new "Oh, Sunday Night" replaces the previous SNF theme song, "Waiting All Day for Sunday Night" -- based on Joan Jett's "I Hate Myself for Loving You" -- which had a decade-long run.