absolutely!! and one of the best things about living alone is that i can sing along with it whenever i want. i love driving long distances alone. i crank up my favorite albums and just belt it out as loud as i can bellow. that's how i learned to sing. you develop a lot of vocal strength and control singing as loud as you possibly can in a small confined space where you can hear every noise you make.
Yeah... I'm pretty sure everyone is guilty of it at some point.
A few years ago, I decided it was a good idea to wake up early and shower before everyone else. I started singing in the shower (to this day, I still wonder why). Low and behold, as I walked out of the bathroom, a line had formed waiting for me to get out.
I do it A LOT, though not as much around other people... actually I don't listen to music a lot around other people. I still sing without listening to music though, and I do do that whether people are there or not.
Dude, I scream along with my music.... (not actual screaming... It's a vocal technique...)
I fuckin' rip! I can get a nice sounding high, and a super low, yet still very audible tearing growl.... What a beast.