Philadelphia-connected underground rap duo ShrapKnel, made up of Curly Castro and PremRock, unveiled three new albums this summer. Their latest releases signal both a continued dedication to the craft and a refreshing second wind in their seasoned careers.
‘The endeavor will reward you’: Philly underground rap scene veterans ShrapKnel keep pushing forward

Key Takeaways:
- ShrapKnel is composed of Curly Castro and PremRock.
- They remain deeply involved in the Philly underground rap scene.
- The duo released three new albums this summer.
- These releases mark a significant second wind in their music journey.
- Their years of effort and perseverance define the scope of their ongoing work.
Introduction
ShrapKnel, the Philadelphia-connected underground rap duo of Curly Castro and PremRock, has long been a fixture in the city’s hip-hop community. After years of honing their craft, the pair has kicked off what feels like a new era, releasing three albums in a single summer.
ShrapKnel’s Roots
Both Curly Castro and PremRock have been immersed in Philadelphia’s underground scene for years. Their collective experiences, stage presence, and unique sound have placed ShrapKnel on the radar of devoted hip-hop followers who admire their authentic style and commitment.
The Three New Albums
This summer has been especially fruitful for ShrapKnel, as they introduced three new albums that represent the breadth of their creativity. Each release showcases their evolving sound, balancing gritty beats and insightful lyrics with the raw energy that underground rap fans crave.
A Second Wind
Described as “a second wind” by those familiar with their journey, these albums mark an invigorated chapter in ShrapKnel’s musical life. Having “toiled for years at their music,” Curly Castro and PremRock view this moment as both a celebration of past achievements and a springboard for future projects.
Looking Ahead
By bringing forward a trio of studio efforts in such a concentrated timeframe, ShrapKnel hopes to reinforce the idea that perseverance does indeed pay off. Their steadfast work ethic, combined with Philadelphia’s vibrant hip-hop environment, underscores their belief that, as they say, “the endeavor will reward you.” While the full details of what lies ahead remain to be seen, it’s clear that ShrapKnel’s dedication to authentic underground rap is as strong as ever.