SB19 members Josh Cullen and Pablo have given new flavor to “The Iron Heart’s” theme song “Sino Ka Ba.”

The two P-pop artists introduced their version of the song last Friday (Aug. 4), signaling their first-ever release as a sub-unit of the popular group SB19.

“Sino Ka Ba” was originally performed by “Idol Philippines” season 2 winner Khimo Gumatay. It talks about the uphill battles of a hero in fighting for the greater good.

ABS-CBN Music creative director Jonathan Manalo over-all produced the anthemic track and co-wrote it with Star Pop label head Rox Santos and Kapamilya artist Jeremy G.

Meanwhile, the search for justice continues in the latest season of “The Iron Heart” topbilled by Richard Gutierrez, Sue Ramirez, Jake Cuenca, Dimples Romana, Sofia Andres, and Albert Martinez.

“The Iron Heart” airs from Monday to Friday, 8:45pm on Kapamilya Channel, Kapamilya Online Live, iWantTFC, TFC, A2Z, and TV5.

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