The purpose of this study was for eight university-based teacher educators to experience Lesson Study planning in order to gain a deeper understanding of the power relationships our teacher candidates experience in student teaching. Data included six video recorded and transcribed planning sessions. Data analysis focused on the power relationships evident in the teacher educators’ lesson planning process, including positions of power that were identified as sole leadership, challenged leadership, and shared leadership. Implications for incorporating lesson study with teacher candidates include increased sensitivity to power dynamics and leadership roles during planning.