Murat Dalkılıç is my favorite Turkish pop singer. I am sure there are other probably better but he was the only one that I heard while I was there that really caught my attention. I especially love the song Bir Güzellik Yap. I love that while it has obvious western pop aspects it still retains a traditional Turkish/Middle Eastern vibe, other than the use of the Turkish language.
http://www.youtube.com/watch?v=_gQxONA5j7Q