SJ Mortimer fires back with defiant new solo single ‘Don’t Underestimate Me’

Known for her commanding presence as the frontwoman of Morganway, SJ Mortimer steps further into her solo career with ‘Don’t Underestimate Me’, a powerful rock anthem fuelled by grit, determination and hard-earned confidence.

Drawing on more than a decade of experience in the music industry, the track confronts the frustration of being overlooked while transforming those experiences into a message of resilience and self-belief.

Recorded at The NuttHouse Studio in the legendary musical city of Muscle Shoals and produced by Sol Philcox-Littlefield, the single pairs muscular guitar work with soulful vocals and an explosive chorus that demands to be sung back at full volume. It also marks a heavier, more hard-edged direction for her solo material, showcasing a fearless approach that complements the emotional honesty she’s long been known for.

Already celebrated for a voice capable of shifting effortlessly from delicate vulnerability to full-throttle power, SJ Mortimer continues to prove why she’s one of the UK’s most compelling rock vocalists. With ‘Don’t Underestimate Me’, she delivers an unapologetic statement of intent that feels every bit as bold as its title suggests.