SB19 is a Filipino boy band formed in 2018, consisting of Pablo, Josh, Stell, Ken, and Justin. They are noted for their contributions to the contemporary Pinoy pop scene and became the first Southeast Asian act to be nominated on the Billboard Music Awards, as well as the first Southeast Asian act to make an appearance in the top 10 of the Billboard Social 50.

For their significant contributions in pioneering Philippine pop music to the global scene, SB19 has been dubbed the "Kings of P-pop" by the public and various media. The group promotes its music as part of Pinoy pop, a sub-genre of Original Pilipino Music.

In 2016, ShowBT Philippines, a subsidiary of the Korean company ShowBT Group, conducted a talent search for performers, with the aim of localizing K-pop in other Asian countries.

The candidates went through a difficult South Korean-inspired training camp, including physical training and "personality development". Trainees who were judged inadequate were sent home, until the final seven members were chosen. The training continued, with over-nine-hour work days; of the seven members, Stell remained with ShowBT, three quit, and Pablo, Josh, and Justin left but changed their minds later. Ken, a previous candidate, also joined the group. These five became the current members of SB19. Pablo—initially using the stage name Sejun—is the band's leader.

SB19 debuted on October 26, 2018, with the single "Tilaluha", a sentimental ballad. It was followed by their fast-paced second single "Go Up", which was released on July 19, 2019. The group received little attention following this regrouping, and its members began to grow disheartened. They were on the verge of deciding to disband but several months after the song was released, their dance practice video of the song went viral on Twitter and Facebook, and SB19 was able to secure spots on Philippine television and radio. The newfound opportunity led them to use social media as a strategy to gain recognition and start planning a tour.

On November 20, 2019, SB19 became the first Filipino act to appear on the Billboard Next Big Sound chart. They also became the first Filipino act to enter the Billboard Social 50, debuting at number 28 on the week of December 28, 2019. Jeff Benjamin of Billboard noted that a growing international fan-base had aided their appearance in the chart. He added that "more artists [will] continue to look East for inspiration and a larger audience".

When a free nationwide concert tour for 2019 and ticket sales were opened for their concert in Cuneta Astrodome in Pasay, tickets quickly sold out in three minutes. They were able to perform in three other cities - Silay, Cagayan de Oro and Legazpi. However, the planned concerts to be held in other major cities in the Philippines were indefinitely postponed because of the COVID-19 pandemic.

In December 2019, Sony Music Philippines signed a recording contract with the group, and on the same day, the group released their third single, "Alab (Burning)", under the new record label.