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Deadpool star Ryan Reynolds, a longstanding friend of the singer, pictured with Taylor Swift before the game

By Brandon Livesay

BBC News at MetLife Stadium in New Jersey

Welcome to Sunday Night Football, Taylor's version.

It has been exactly a week since pop superstar Taylor Swift showed up at a Kansas City Chiefs NFL game to watch her rumoured love interest, Travis Kelce.

And now she's gone one better, welcoming Kelce to New York where the Chiefs play the Jets - with Hollywood A-listers Ryan Reynolds, Blake Lively and Hugh Jackman as her guests.

The official NFL account tweeted Swift before the game - "Welcome to New York, it's been waiting for you,", sharing footage of her greeting people at the stadium.

This Swifties/NFL crossover has suddenly become the biggest storyline in the most popular sport in America.

Outside MetLife Stadium (which is actually in New Jersey), there are masses of fans partying, tossing footballs and soaking up the sunshine after a week of pelting rain.

It's the cultural curiosity known as tail-gating.