The song you just cant stop playing???

As a spinoff from another thread, what is the song(s) you just can't get enough of? there are four songs on Tift Merrit's "Tamborine" that I keep on playing
---Good Hearted Man
---Laid a Highway
---Like a Tambourine
---Still Pretending
Eva Cassidy--"Live at Blues alley". The rest of her catalog is pretty special too. If yuu don't have something by her, you are missing something special.
I also can go a month or so and not listen to Jennifer Warnes "The Well", but when I do play it again and give it a good listen, I wind up listenig to it regularly for the next 3-4 weeks--like almost for the first time.
I don't think I will ever tire of these ladies' voices.
her new album is worth buying for this song alone, and there are several fantastic others.
The new song Bob Dylan wrote for the movie "North Country" is an amazing country-folk ballad that has been stuck in my head since the day I first heard a few months ago. The song, "Tell Ol' Bill," is full of amazing, haunting imagery telling the tale of pain and the scarred resignation that comes with the acceptance of a failed relationship and lost dreams. It is sung from the woman's point of view and ends with:

Tell ol' Bill when he comes home
Anything is worth a try
Tell him that I'm not alone
That the hour has come to do or die.

All the world I would defy
Let me make it plain as day
I look at you now and I sigh
How could it be any other way?

This has to be one of the best written songs of 2005 and one of Dylan's 10 best ever...seriously.