Featured App: ‘5th Coach’, The Facebook App For The Television Show, “The Voice” Zach Oldenburg, February 22, 2012February 22, 2012 NBC’s “The Voice” had it’s season two premiere a few weeks ago, and to celebrate, they’ve gone viral and released their very own Facebook App. Aptly titled “5th Coach”, the app puts you, well, into the role of the 5th coach, and allows you to build your team of artists,…