In this squib, we provide novel empirical support for treating the thematic domain—the vP—as a locality domain like CP (a phase), in agreement with a growing body of research (see Fox 1999 , Barbiers 2002 , Legate 2003 , Rackowski and Richards 2005 , Cozier 2006 , Kahnemuyipour and Megerdoomian 2011 , Buell 2012 , Van Urk and Richards 2015 ; see Den Dikken 2006 for an opposing view). We show how vP phasehood solves a previously unsolved problem for defining the locality of Icelandic Stylistic Fronting. We present novel data to show that Stylistic Fronting of verbs and particles can only cross one phase boundary, a generalization that is empirically superior to clause-boundedness. Our study supports the view that v defines a phase edge whether the verb is linked to an external argument or not ( Legate 2003 , Marantz 2007 ).