Actually, there are so many I could not name them!
I like many Abba songs, Leonard Cohen, Leonard cohen's son (cant think of his name!), Meatloaf, Queen, and cannot think of just ONE that I would not get sick of.
I have spent days listening to Leonard Cohen songs and never got sick of them and ditto with Abba, and Queen, and some of Meatloaf's old ones - and also Cher...the list goes on and on as I think....but the question was one, and I cannot answer it!