Who Am I is the second studio album by South Korean boy band B1A4. It was released on January 13, 2014, by WM Entertainment and distributed by CJ E&M Music. The album marked a significant point in the group's discography, showcasing the members' growing involvement in songwriting and production, particularly leader Jinyoung, who co-wrote and co-produced several tracks.
The album consists of 12 tracks, including the lead single "Lonely (없어선 안 될 너)", which achieved commercial success and garnered B1A4 multiple music show wins. Other notable tracks include "Amazing" and "Love Then", featuring artist Harim. Musically, Who Am I incorporates B1A4's signature blend of K-pop, dance-pop, and R&B, with a slightly more mature and introspective sound compared to their previous works.
Upon its release, Who Am I was a commercial success, topping the Gaon Album Chart in South Korea. The album and its lead single received positive attention for their musical quality and the group's evolving artistry. It solidified B1A4's position as a prominent act in the K-pop industry, known for their self-produced music.