Question: Who sang the national anthem at the superbowl?
Disambiguated questions and answers: question: Who sang the national anthem at the superbowl in 2017?
Who sang the national anthem at the superbowl in 2016?
Who sang the national anthem at the superbowl 2015?
answer: Luke Bryan
Lady Gaga
Idina Menzel
Natural Questions answer: Pink (from the Wikipedia article "List of national anthem performers at the Super Bowl")