On February 14, 2013, Castro's first music video "Bubble" appeared on YouTube, quickly garnering over 3 million views. Bubble further popularized the dance crazy "Bubble Pop," particularly in the Philippines. The music video was Sebastian Castro's "coming out." Prior to releasing the homo-erotic Bubble music video, Castro was not
publicly open about his sexuality. He was featured among the Philippine Cosmopolitan Bachelors of 2012 and is currently an endorser of
Fujifilm,
Durex, Cathy Valencia, and
Blued. After being cast in several minor and supporting roles on TV and Film over the course of five years, Sebastian Castro appeared in his first lead role in full feature film
4 Days (2017), an independent film by Filipino director
Adolfo Alix Jr. PLM Film Society heralded the film as "one of the more inventive films of the genre in recent memory," adding "
Mikoy Morales and Sebastian Castro complement each other onscreen, Morales with his tough and heartbreaking take on Mark, and Castro filling Derek full of reservations, doubts and an unspoken multitude of feelings." ==Filmography==