John Paul "Japs" Ricafranca Sergio is a Filipino musician and record producer. He is a former bassist, vocalist, guitarist of the Filipino band Rivermaya and the current guitarist/vocalist/frontman for the band Peso Movement.

Isang Ugat, Isang Dugo is the eighth studio album by Filipino rock band Rivermaya, released on October 10, 2006, through Viva Records. Except for original track "Isang Bandila ", it is a covers album featuring songs by Filipino artists in the 1980s, including The Jerks, Joey Ayala, and Wuds.