The collaboration will appear on the 10th anniversary edition of 'In The Lonely Hour'
"[I] had to do something crazy!" the singer told the audience
Smith was celebrating the 10th anniversary of their debut album 'In The Lonely Hour'
The singer's shaky opening lines of 'If I Ain't Got You' appear to have been pitch-corrected in the video on the NFL's YouTube channel
The set largely drew from the headliner’s 2004 album ‘Confessions’
The singer gave a 10-minute performance at a piano in St. Pancras International station
Hamas terrorists infiltrated Israel on paragliders earlier in October
Keys has thanked Swift for her "big beautiful spirit that makes everyone feel loved"
Including orchestral covers of Alicia Keys and Beyoncé
Generation-defining singer-songwriter and acclaimed actress