Carry on, Like an equal suspender

The story:

I was listeneing to my favorite classic rock station and the song
come on. I was singing along to it and my sister came in the room.
I sang the line as i thought it was, and she turned to me and asked
me what I was on. Confused, I asked why. We had a 10 minute
debate on what it was until she went on the internet and showed
me the lyrics...I had been singing it the way i thought it was fod a
good 2 years, probably embarrassing myself in front of countless
people!