Christian Serratos as Selena Quintanilla will premiere on Dec. 4.In addition to the date announcement, the streaming platform shared the first trailer for the project, which was first announced in 2018.In the black-and-white clip, Serratos' Selena is seen performing onstage, as her father, Abraham (Ricardo Chavira), offers advice in a voice over.«If you keep practicing, pretty soon it's all gonna pay off.