That song (which is insipid and bland) gets a bad rap for that. I'd argue that the song is indeed using irony effectively. irony is subjective: it tells you what the speaker believes to be a contradiction. the song says: these things are ironic; the implied presupposition is something like "everything turns out well like in a romance movie."
- STATEMENT: rain on your wedding day is ironic
- PRESUPPOSITION: it should not rain on your wedding day bc that is a magical time
- CONCLUSION: life is not ideal
I mean, it's not a very deep conclusion, but it is logically defensible. anyway, if you're in high school and you need an English paper topic, there you go.
Yeah, or if the car had a sticker on it saying "award - safest student driver" on it, it might be ironic.