In this June 15, 2014 file photo, Ariana Grande performs at the 2014 Much Music Video Awards in Toronto. Grande will sing the national anthem at CenturyLink Field in Seattle on Sept. 4, 2014, before the Seattle Seahawks play the Green Bay Packers in an NFL football game, as the NFL kicks off its 95th season.
In this June 15, 2014 file photo, Ariana Grande performs at the 2014 Much Music Video Awards in Toronto. Grande will sing the national anthem at CenturyLink Field in Seattle on Sept. 4, 2014, before the Seattle Seahawks play the Green Bay Packers in an NFL football game, as the NFL kicks off its 95th season. Chris Young Associated Press
In this June 15, 2014 file photo, Ariana Grande performs at the 2014 Much Music Video Awards in Toronto. Grande will sing the national anthem at CenturyLink Field in Seattle on Sept. 4, 2014, before the Seattle Seahawks play the Green Bay Packers in an NFL football game, as the NFL kicks off its 95th season. Chris Young Associated Press