Is it normal to randomly burst into song

I do it in the kitchen, my bedroom anywhere.
If Ive got my over ear headphones on walking outside Ill sing and dont find it odd if I stop mid walk and bust a move :D

damn,me and my friens were drinkin n smokin the other day and we randomly did a whole high school musical type song and dance number,it was fuckin weird,although i totally participated,i was the lead dancer,shit came out of absolutly no where.

^_^

I do that all the time! The people who do this are usually the most fun people to be around!!

My dad does that a lot. I don't think it's abnormal but it annoys me.

Lol!

I do this, I also randomly roll my 'r's, I do it when I'm bored or waiting for something. I do get a few look from customers at work but ahh well, I think they're getting used to it now

I do this if i a song pops into my head i have to sing it. ive done it on the train before and i got a few funny looks :)

Butts. Ha ha!