In 2018, he was casted as leading man in PHR series Araw Gabi and paired with former Girltrends member Barbie Imperial who has been claimed having a strong chemistry with him, form a loveteam called "Juan Bie" by fans.
De Guzman is a cousin of fellow singer Klarisse de Guzman, first runner-up of The Voice of the Philippines (season 1).
This latter did not take until December 2009 when PARI decreased five-thousand copies for local albums for a requirement as a Platinum-certified album when they made it to 20,000, while still remained 15,000 for international-released albums, same from the previous one.Currently, domestic repertoire again shares the same thresholds along with the international repertoire, same that of the 1999—2006/2007 rule.As the album could be one of the best-sellers, new criteria were told that the figure must be published by a reliable or acceptable source and that the album must have sold at least 150,000 units for both domestic and international albums in the country which was already implemented on March 2012.In 2015, after a series of disturbing and cryptic messages posted on his Instagram account, De Guzman later apologized and stated via Instagram post that Mendiola was not the reason for their second breakup nor she and station ABS-CBN would be blamed for his recent actions and behavior.He further claimed that he has been recently struggling with anxiety attacks, depression and bipolar disorder.He apprenticed as an actor and production staff under the university's college-based theater group, Dulaang UP. He was cast in the new PHR series Alyna and paired with his Midnight Phantom co-actor Charee Pineda who has been claimed having chemistry by the fans.In 2006, he joined the UP Wrestling Club and eventually became its president and a decorated athlete. His biggest break so far is playing the lead role as Gabriel Maglayon, originally played by actor Rico Yan, in ABS-CBN's 2011 remake of Mula Sa Puso.This list can contain any types of albums, including studio albums or extended plays, live albums, greatest hits or compilations, various artists, and soundtracks, both from domestic and international artists.The Philippine Association of the Record Industry or PARI is the organization responsible for awarding record certifications in the Philippines.In late 2013 to 2014, De Guzman underwent rehab due to drug abuse and entered a rehab facility for 17 months.The premature cancellation of his show Angelito: Ang Bagong Yugto was said to be caused by De Guzman's eventual erratic behavior on set.During his elementary and high school years, he studied at Lourdes School of Quezon City. Dyogi found him and asked to audition for Midnight Phantom.In 2005, he was accepted at the University of the Philippines in Diliman, where he took up Certificate in Theater Arts, majoring in Performance Studies. He logged a 1-1 fight record: he lost his match in the 2007 URCC University and won in the 2009 S. He passed the audition and starred as the best friend of Rafael Rosell who plays the title role.Music certifications prior to 1990 were only awarded by record labels of their artists through their own guidelines until PARI took the obligation.