This study is the first analysis on how focalizing ser is marked prosodically, and how this compares to cleft and pseudo-cleft focus structures. Data was collected from Barranquilla, Bogotá, Cali, and Medellín. Our results show that ser in FS structures can have a pre-nuclear pitch accent, unlike ser in cleft and pseudo-cleft structures. Although FS is considered a discourse marker (Curnow & Travis, 2004; Pato 2010), it still behaves like a verb in terms of syntax and prosody.