BOBBY 1ST MINI [ROBERT] BOBBY携《ROBERT》回归，金知元将自己完整呈现了出来。这张专辑收录的4首歌曲彷佛就是BOBBY的人生曲线。 BOBBY通过主打歌《f》摆脱压抑和煤气灯效应，向大众展示真正的自己。其后的《hercules!》用DnB体裁所具有的爆发性能量发出咆哮 。 接着，借画出自己的《why stop now》以Boom Bap和 Rock Sound强烈地传达了「要永远活出自我 」的信息。 还有，表达了金知元日后将摆脱周遭的顾虑和担忧，大胆帅气地飞翔的《새(sae)》。 1. f Lyrics by BOBBY Composed by BOBBY, THE PROOF Arranged by THE PROOF Synthesizer by THE PROOF Piano by THE PROOF Guitar by 엄태영 2. hercules! (feat. JUSTHIS) Lyrics by BOBBY, JUSTHIS Composed by BOBBY, THE PROOF Arranged by THE PROOF Synthesizer by THE PROOF Drum by THE PROOF 3. why stop now (feat. 정상수) Lyrics by BOBBY, 정상수 Composed by BOBBY, THE PROOF Arranged by THE PROOF Synthesizer by THE PROOF Piano by THE PROOF Guitar by 이창우 4. 새 (feat. 허성현 (Huh)) Lyrics by BOBBY, 허성현 (Huh) Composed by BOBBY, THE PROOF Arranged by THE PROOF Synthesizer by THE PROOF Bass by THE PROOF