Gladys Knight, Chloe x Halle give thanks after performance

Actor Jamie Foxx, right, watches the teams warm up, before the NFL Super Bowl 53 football game between the Los Angeles Rams and the New England Patriots Sunday, Feb. 3, 2019, in Atlanta. (AP Photo/Mark Humphrey)

U.S. Rep. John Lewis, D-Ga., left, former U.N. Ambassador Andrew Young and entertainer Jamie Foxx, right, speak on the sidelines before the NFL Super Bowl 53 football game between the Los Angeles Rams and the New England Patriots, Sunday, Feb. 3, 2019, in Atlanta. The Patriots won 13-3. (AP Photo/Jonathan Landrum Jr)

Chloe x Halle perform before the NFL Super Bowl 53 football game between the Los Angeles Rams and the New England Patriots Sunday, Feb. 3, 2019, in Atlanta. (AP Photo/Charlie Riedel)

Chloe x Halle performs before the NFL Super Bowl 53 football game between the Los Angeles Rams and the New England Patriots Sunday, Feb. 3, 2019, in Atlanta. (AP Photo/Morry Gash)

Chloe x Halle perform before the NFL Super Bowl 53 football game between the Los Angeles Rams and the New England Patriots Sunday, Feb. 3, 2019, in Atlanta. (AP Photo/Charlie Riedel)

Gladys Knight sings the national anthem before the NFL Super Bowl 53 football game between the Los Angeles Rams and the New England Patriots Sunday, Feb. 3, 2019, in Atlanta. (AP Photo/David J. Phillip)