Female Singer/Upbeat/Pop/ Heard it at Mcdonald’s

The song went on like “… all of the time”. It was an upbeat song and female singer!! when I asked the cashier he said we play the radio and the songs are curated. we don’t know what’s playing. shazam didn’t work!! i tried the chatgpt guesses - it isn’t artic monkeys or zara larsson. please helpppp