SB19's Stell, Justin join GOT7's Mark Tuan for 'Alone' dance challenge

GOT7's Mark Tuan teamed up with Stell and Justin of SB19 for a dance challenge video for his latest single, "Alone," giving K-pop and P-pop fans a crossover they didn't know they needed.

Mark shared the 26-second dance challenge on his social media platforms, where he and the two SB19 members performed the song's choreography together. The 32-year-old American singer and rapper, who is a member of the South Korean boy band GOT7, captioned the post, "Alone w/ @SB19 Official."

The collaboration came as SB19 showed its support for Mark following the release of "Alone," with Justin, 28,  and Stell, 31, joining the GOT7 member for the special dance challenge.

Ecstatic fans from both fandoms quickly filled the comments section. One fan wrote, "Omg my Ahgase and A'TIN heart," referring to the official fandom names of GOT7 and SB19. Another commented, "Successful fanboy na si Justin." 

“World of Dance Philippines” alum and dancer Ken San Jose also reacted to the video. "This collab is so fire," he said.

 Although the video lasted only several seconds, it was enough to leave fans expressing their support, pride, and excitement over the crossover.

Mark last visited the Philippines in 2024 for “The Other Side” world tour, where he held his first solo concert at the SM North EDSA Skydome. During his closing remarks, he said he hopes to return to the country with GOT7.

Other GOT7 members, including leader Jay B, also visited the Philippines in March 2025. The last time the group performed together in the country was in October 2019 during the final stop of their “Keep Spinning” world tour. With GOT7 and as a solo, Mark has visited the country four times.

Justin de Dios, also known to fans as Jah, serves as SB19's main visual, sub-vocalist, creative director, and youngest member. Meanwhile, Stell, whose full name is Stellvester Ajero, is the group's main vocalist and lead dancer/choreographer. He is known for his powerful high notes and for helping shape SB19's choreography. 

Over the years, both Justin and Stell have collaborated with several prominent artists through special performances, dance challenges, and music projects.