Crush playing a strange mashup

Date: 4/30/2023

I was watching my crush singing with a band. (She is in a band IRL but this was a different band with people I didn't recognise) They were playing all original songs that I didn't know, but then she said they were going to play a cover. The cover was a mashup of 'I'm Still Standing' by Elton John and something by Nine Inch Nails (maybe 'Head Like a Hole'?)