Before I knew it's title, I thought the song This Year's Love had the line "This here's lovin' at-a last" instead of This year's love had better last.
A childhood belief about misheard lyrics

others believed things like this
- I used to believe that the B-52's song "Love Shack" was actually "Love Shark!"— Natalie
- I used to think the song "love the one you're with" was called "love the one, your win. — Glowworm
- I thought the song "Party Time" by Moby was actually saying "heart attack" (this was before I knew the title)— Elviessa
- I always hear Manic Street Preachers 'You Love Us' as 'You Love Arse'.— Lou
- In Beyonce's song 'Crazy in Love', I always thought she said 'Daisy right now'.Anon
- that song that goes *bring me a higher love*
i thought it said *breathing in iron lung*— oi