[TOMT][MUSIC][POP] recently heard song

i heard a song while i was out shopping and the only lyrics i can remember are ‘ i’ve already got somebody ‘ or something very similar

the song sounded like a dua lipa song but ive googled the lyrics and listened to the shown songs and it none of them

i know it was a popular song and it was often on the radio a few years ago but it’s driving me insane