Layla B. Simmons is a 16-year-old rock musician and one of the six Excellent Idols in the OVA series Idol Project. She is defined by an outgoing and gritty personality that matches her rockstar persona, carrying herself with a tough, no-nonsense attitude. Despite her hard exterior, Layla possesses unexpected soft spots, particularly for her guitar, which she treats as an inseparable companion and cannot sleep without, and for the aspiring idol Mimu Emilton, whose raw talent she recognizes and believes in strongly. Her personal motto and advice to others is simply "Guts!" reflecting her emphasis on determination and courage. Within the story, Layla serves as one of the senior idols whom Mimu looks up to and interacts with during the chaotic inter-dimensional journey that follows the kidnapping of Yuri and the Excellent Idols. Layla’s role is that of a supportive yet blunt mentor figure, encouraging Mimu to push forward and trust her own abilities. Her background as a seasoned performer is evident in her confident stage presence and her deep, intimate relationship with her instrument. While the series does not extensively explore her personal history, her actions demonstrate a fierce loyalty to her fellow idols and a genuine desire to see Mimu succeed. Her primary notable ability is her skill as a guitarist and vocalist, delivering powerful rock performances that stand in contrast to the more pop-oriented styles of the other Excellent Idols. She shows little overt character development over the brief OVA, but her influence on Mimu’s growth is significant, helping the protagonist gain the confidence to pursue her own dream of becoming an idol.