Tinie Tempah and Gene Simmons were among the acts to perform in the lead up to the Minnesota Vikings' match against the Pittsburgh Steelers tonight at Wembley Stadium.
The Kiss bassist sung 'The Star-Spangled Banner' to a packed crowd prior to kick off.
More top news
A bitterly cold airmass covers the UK this weekend.
The emotion of Donald Trump's inauguration was too much for Jessica Starr, who told ITV News: "I'm so sorry... this is not America."
Prince William and Kate have announced they are to become 'full-time' Royals as they move their family back to London from Norfolk.