Party All Night (Sleep All Day) by Sean Kingston. That's what I've been listening to for the past few days. Though, my favorites always change, usually after two weeks.
This thread has been done a few times under different names... usually "What's your favorite song?" unless you intended something different. If that's the case then you need a little bit better of an explanation.
But basically the best song I've heard, and thus my favorite song, is Thrill Is Gone by B.B. King. The best version of that being his duet with Gary Moore.
