Mike Posner and Sammy Adams join The Black Eyed Peas’ Taboo during his performance at Boston’s Kiss 108 ‘Kiss Concert 2013’ yesterday, May 18. Sammy posted a video of it on Vine. Check it out! Day was crazy! @mikeposner hops on with Black Eyed Peas Taboo and @sammyadams and the place erupted!!! twitter.com/VanlineLLC/sta… — Patrick…