Fox took to Instagram on Sunday to share a trio of snapshots showing herself and her rocker boyfriend outside 30 Rockefeller Center in New York, during the past "SNL week" -- meaning the last few days as Kelly rehearsed for his set.
Fox had some high praise for Kelly's appearance on the episode, calling it the "best performance that show has ever seen 🤯💔"
On Saturday, Kelly took the Studio 8H stage for his first performance of the night and belted out his hit "My Ex’s Best Friend."
Kelly went full rock star during his first set, stepping (and almost stumbling) over amps while playing and finally throwing his bright pink electric guitar into what appeared to be the audience or the wings of the stage after the tune was done.
Kelly's second performance really showed the range of his style and substance, as he delivered a remarkably beautiful and emotional performance of his song "Lonely."
The song struck a cord with many fans, given the significance of the tune's lyrics in relation to his father's death in July 2020.