What's your favorite song and why?

I'm just curious as to what peoples favorite songs are. It's a fun question to ask.

It could be of all time or your current fave!

I'll go first ^_^
My favorite song of all time is Tragic Girl by Weezer. There's nothing too deep about it being my fav, it's a pretty song and I can relate to the lyrics. I also think it's cool that it was only released 2010.
My current fave is probably Doin' Time by Sublime though. It's so interesting and I love Bradley's voice in it. A friend of mine got me more into Sublime so I've been listening to them more lately.