In the 21st century, policymakers and educators agree that improving the quality of K-12 education requires effective leadership practices and collaborative efforts. Particularly, research has shown that a leadership approach that focuses on a continuous improvement can achieve impressive results. Successful leaders empower teachers to be the best they can be in their own classrooms and they able to extend their leadership to others so every faculty can lead positive changes. Even though there are many effective school leaders who show excellent leadership behaviors for ongoing student achievement, these leadership practices and their leadership approaches have not been empirically or theoretically conceptualized. This study claims that employing a concept of "Excellent Leadership of School Administrators" as a new leadership approach may potentially be used to increase K-12 student achievement through continuous improvement and systemic partnership. This literature review and conceptual study is designed to fill the gap in understanding excellent leadership practices and behaviors for ongoing effort to improve student outcomes. [Note: The volume number (1) and issue number (2) shown on some pages of the PDF is incorrect. The correct citation for this article is v4 n1.]