Song expert needed

[Bythecooker]

I'm trying to remember a song. He wrote it for an american / canadian athelete after meeting her at a party. She had a boyfriend so never became love interest. He then invited her to the grammys to see it performed. I've googled and googled and it's driving me mad. Can anyone recall please?

Its Hey there Delilah by the Plain White T's.

Thank you. You've made my day brighter and less grumpy and frustrating 😁

You're welcome, I never usually have a clue on the what's this song/filmbook threads 😁.