ZBB wasn't alone in the center of the field as President Trump, accompanied by men and women of the armed forces, stood nearby at attention for the historic moment.
Barack Obama has done both, and said in 2016 that "respecting and honouring our flag and our anthem is part of what binds us together as a nation".
One comment read: "Super obvious Trump doesn't know the words to our National Anthem". But as country artist Zac Brown broke into the song's first few bars, every set of eyes in the building remained fixed on President Donald Trump, who took in the game's first half from a luxury box. He appears to mouth some of the words while occasionally pausing and missing some out.
Trump has been criticizing National Football League players for taking a knee during the national anthem for several months.
On Monday, he tweeted: "We want our flag respected - and we want our NATIONAL ANTHEM respected also!".
Netanyahu: UN Palestinian refugee agency 'must disappear'
UNRWA's response came after Israeli Prime Minister Benjamin Netanyahu called for cutting aid to UNRWA until it ceases to exist. The U.S. later denied the report , saying the funding was still "under review".
Trump has criticised professional football players who kneel during the anthem to protest racial injustice, as well as the NFL itself for allowing it.
Still, other users felt Trump's poor lip-singing was a sign that he might be developing dementia - a rumor that has intensified after "Fire and Fury" author Michael Wolff claimed several people within his own administration frequently question Trump's mental stability and competency.
Donald Trump has been criticised on social media after he appeared to struggle to recall the words to the U.S. national anthem.
Later, Trump took to Twitter praising Pence for leaving the game. Crooked Hillary Clinton also played these cards very hard and, as everyone knows, went down in flames.
This is the President of the #United States that we're talking about.
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