In the four-part show, archival footage and personal videos and photos are intertwined with present-day interviews and scenes of the group embarking on their 2022 tour
Battle was found on Friday morning and an autopsy could be conducted as soon as Sunday, said Lieutenant David Smith from the Los Angeles County Coroner's Department.
The cause of death is officially listed as pending.
"Words cannot express the depth of our loss," G.R.L. said in a statement on its website.
"Simone's incredible talent was only surpassed by the size of her heart."
News of Battle's death was first reported by celebrity website TMZ.
"Simone was an exceptional young talent and human being, and we are all devastated to learn of her passing," Reign Deer Entertainment, Robin Antin, Kemosabe Records and RCA Records said in a statement.