Well, I think you'd need a stereo to mono adapter for that to work. Otherwise the sound would only come out of 1 ear...

http://www.showmecables.com/product/3-5mm-Stereo-Jack-to-3-5mm-Mono-Plug.aspx?utm_source=google&utm_medium=cse&utm_campaign=957&gclid=CIi3n9WHy8wCFdhahgodrqoFOA