- Category : 1986-births
- Type : GP
- Profile : 2/4 - Hermit / Opportunist
- Definition : Split - Small (27,51,57)
- Incarnation Cross : RAX The Vessel of Love 1
Filipino celebrity and one half of real-life couple together with his then-fiancée Michelle Liggayu - together known as JaMich, who gained popularity in the Philippines on YouTube.
JaMich became one of YouTube's popular love teams in 2011. "By Chance" was their first uploaded video which gained more than seven million views with 543,163 accumulated subscribers. The duo joined Twitter in June 2011 and has since acquired over a million followers. After six years, the official engagement of JaMich was announced. Liggayu proposed to Sebastian at the Philippine International Convention Center on 11 May 2014.
In January 2014, Sebastian was diagnosed with stage 4 lung cancer. Jam Sebastian died on 4 March 2015, sixteen days before his 29th birthday.