Shanna Moakler: Travis Barker Took 30 Pills Daily

's ex-wife, Shanna Moakler, made a shocking claim about the Blink-182 drummer during an appearance in an upcoming documentary about his life.

In Travis Barker: Love Is Louder Than Fear - which premiered at Tribeca Film Festival in on Saturday with - the former Playboy model, 51, said Barker once admitted that he took as many as 30 pills a day at the height of his drug addiction, per Us Weekly.

Barker himself said people around him were extremely concerned for him, and shared how a security guard stayed awake at night to make sure he was still breathing.

Moakler and Barker were married in 2004 and finalized their divorce four years later following a tumultuous relationship.

The documentary also included old footage from the former couple's reality show, Meet the Barkers. Their children, son Landon, 22, and daughter , 20, and Moakler's daughter, Atiana, 27, from a previous relationship with boxer Oscar de la Hoya, were also featured in the film.

Travis Barker: Love Is Louder Than Fear drops on Hulu on August 13 and offers an unfiltered look at the life, career and trauma of the 50-year-old musician, who was left with severe burns and PTSD following a harrowing 2008 plane crash that claimed four lives.

Ten years in the making, the documentary follows his personal life from growing up in a tough neighborhood to taking over as drummer for Blink-182, which changed the course of his life.

It tells how Barker battled grief and walked a thin line between 'survival and surrender.'

His relationship with current wife, Kourtney Kardashian, 47, also She was credited with helping Barker overcome his fear of flying so he could tour and live a fulfilling life.

Moakler and Barker - pictured in 2009 - were married in 2004 and finalized their divorce four years later following a tumultuous relationship