[Verse] Steel beneath the city’s skin, Rumble in the veins within, Concrete whispers, shadows crawl, Heartbeat syncs to subway calls. Flicker lights and graffiti lines, Echoes bounce through dark confines, Pulse like thunder in my chest, This underground won’t let me rest. [Pre-Chorus] Lost in motion, walls alive, Feel the surge, electric drive. [Chorus] Hear that hum, it’s my second heart, Beating fast when the world falls apart, Riding rails through the storm and the night, In the tunnel’s roar, I ignite. Hear that hum, feel the rebel flame, Breaking free from the rules, no shame, Underground’s where the brave belong, In the rhythm, I grow strong. [Verse] Stepping through the darkened maze, Every sound a neon blaze, Faces blur in fleeting glance, Living life in one fast dance. Chains of steel, but I’m unbound, In this grit, my voice is found, Pounding drums and breakbeat shout, This heartbeat’s what I’m all about. [Pre-Chorus] Lost in motion, walls alive, Feel the surge, electric drive. [Chorus] Hear that hum, it’s my second heart, Beating fast when the world falls apart, Riding rails through the storm and the night, In the tunnel’s roar, I ignite. Hear that hum, feel the rebel flame, Breaking free from the rules, no shame, Underground’s where the brave belong, In the rhythm, I grow strong. [Bridge] No stopping now, this pulse won’t die, Steel and sweat beneath the sky, Feel the fire, hear the call, In the depths, I stand tall. [Chorus] Hear that hum, it’s my second heart, Beating fast when the world falls apart, Riding rails through the storm and the night, In the tunnel’s roar, I ignite. Hear that hum, feel the rebel flame, Breaking free from the rules, no shame, Underground’s where the brave belong, In the rhythm, I grow strong. [Outro] Heartbeat, hum, never stop, Underground, rising from the drop, Feel the pulse, the second beat, In the tunnel, I’m complete.