Ithamara Koorax is a Brazilian jazz and pop singer. For several years, she was voted one of the best jazz singers of the world by DownBeat Readers Polls. In 2008 and 2009, Koorax placed third on the "Female Vocalist" category on the 73rd DownBeat Readers Polls, with Diana Krall on the first place and Cassandra Wilson on second, as well as on the 74th Annual Readers Poll.
Back in 2002, Koorax had already placed fourth in the 67th Annual DownBeat Readers Poll.
Koorax once again appeared many times as one of the top singers from the 65th DownBeat Readers Poll, to the 77th Annual Readers Poll, receiving similar acclaim in magazines from the UK, France, Japan, Korea and Switzerland, among others. In the January 2012 issue of DownBeat magazine