Okay, I have to ask...

I have been using Atahualpa for some time now and have recommended it to several others but only in writing. The other day I was discussing WP themes with a friend of mine and suddenly realized that I do not know how to pronounce "Atahualpa"! I was so embarrassed! I've been touting Atahualpa forever yet I've never actually said the name out loud!

So, forgive me, but how do you pronounce "Atahualpa".