My friend Lisa, who has been a Leppard fan forever, got the chorus of “Let’s Get Rocked” screwed up:
Correct: “Heaven knows I’m sick and tired of dancing with this broom…”
Hers: “Heaven knows I’m sick and tired of dancing with these blues…”
From Brown Eyed Girl - Hey there amigo.
Actual lyrics are - Hey, where did we go?
From Hungry Like The Wolf - Mousie’s alive. My juice is like wine.
Actual lyrics - My mouth is alive with juices like wine.
Big ol’ Jedi liar, carry me sofa away.
From “Groovin’” by the Rascals:
Correct - “Life would be ecstasy, you and me endlessly”
Me - “Life would be ecstasy, you and me and Leslie”
Who the hell is Leslie, and why does he/she need to tag along? 
Sibling of that Bruce guy who pops up just as unexpectedly in ELO’s “Don’t Bring Me Down”?
Remember Stevie Wonder’s song, “Boogie On Reggae Woman”?
I always thought it was “Boogie On Red Gay Woman”.
mmm
A friend’s young daughter heard:
“Don’t It Make My Brown Eyes Blue”
as:
“Don’t It Make My Brownies Smooth”
mmm
I always assumed it was their kid. 
When I was a kid riding in the car with my mom, she suddenly asked, "Just what the heck does that mean, “She’s got a chicken giraffe?”
What she heard was on the radio: Beatles “She’s got a ticket to ride…”
hah! both examples just go to show, we hear what we want to hear. There could well be a psychometric test based on this very subject. If not I’m going to invent it.
When I was about 7, “Man in Motion” from St. Elmo’s Fire was a big hit, and I thought it was one of the greatest songs ever. However, I thought the song was called “Magic Motion,” and I thought the line was “all I need is this pair of wings” instead of “pair of wheels.” It almost broke my heart to find out that I had the lyrics to my favorite song wrong. 
Funny! Everyone knows the real line is:
Big Ol’ Jed had a light on
Clearly, Eddie was angling for a 3-way.
Get it right, man. It’s BINGO Jed.
I don’t think I’ve ever understood an entire line of anything John Fogarty has ever sung. His bizarre inerpretation of a Southern accent distorts everything he sings beyond all recognition to me.
Andy Gibb’s “I just want to be your everything,” came out as “I just want to be American.” I mean he was not an American, right? It made perfect sense to me at fourteen that he wanted to become a citizen to impress the girl in the song.
What’s weird about that one is that plain-spoken “jeux sans frontieres” sounds nothing like “she’s so popular”. What the heck was Ms. Bush doing?
I wonder if native French speakers hear than song and wonder what she’s singing at the beginning?
:o
I’ve mentioned this before, but the one that gave me the greatest grief was when I was singing Edge of Seventeen… It’s not a “one-winged dove”, it’s a “white-winged dove”.
Or so I was informed by my wife after she was able to control her laughter.
Similar to Icerigger’s misheard lyric, I thought that Mike & the Mechanics’ “All I Need is a Miracle” was “All I Need is America.”
I just thought of another one that I held for 30 years until I got my I-pod a couple years ago. The song Dance with Me by Orleans. "Dance with me I want to be your partner can’t you see…etc. There is the line “Starry Eyes and love is all around you” I always thought is was Starry Skies and love is all around you…etc. I actually felt bad because the lyrics reminded me of romantic star filled skies and the painting Starry Night. Combining the mystery of the cosmos with the wonder of dance and romance. I really read too much into songs.
They shouldn’t call it “misheard lyrics,” they should call it “badly enunciated lyrics”. 