For the first 50 years of my life, I thought Elvis was singing a song that had some connection to a candy bar called Mallo Cup. I could have sworn he was saying "Amulsha Cup", rather than I'm All Shook Up.
A childhood belief about misheard lyrics

others believed things like this
- I used to think Elvis' "I'm All Shook Up" was "A Mushy Cup". How sad of me to confuse the lyrics of a king...— Sad, Sad, Girl
- When I asked my mother how Elvis died, she told me that he ate too much candy. — Katie B
- In the song "Let's get it on", I seriously thought they were saying "candy on Crome". — Kate P
- When I was 10, I thought that nausea was called Lack-O-Candy Disease. My mom made it up— Teddybearhaha
- I thought if you took some candy and buried in the yard, you would grow a candy tree.Anon
- I thought that the barber sign meant candy because I thought it looked like a candy cane.Anon