Bobby Brown breaks down over Bobbi Kristina, talks Whitney Houston drug use [WATCH]

 US singer Whitney Houston hugs her husband Bobby Brown after she recieved the award for Best Rhythm and Blues performer at the 1999 MTV Europe Awards at The Point in Dublin 11 November 1999. JOEL SAGET/AFP/Getty Images

Bobby Brown is opening up about the tragic deaths of his daughter Bobbi Kristina Brown and late ex-wife Whitney Houston. During a sneak peek of his upcoming candid interview with 20/20, the 47-year-old Montclair resident breaks down in tears as he reflects on the tumultuous events he’s suffered throughout his life.

“My baby’s gone. I thank God I’m still here,” Brown told ABC News’ Robin Roberts. “The hardest thing I had to do in my life was tell my daughter to let go.”

Whitney Houston, Bobby Brown and their daughter Bobbi Kristina are greeted by Mickey Mouse and Minnie Mouse for the premiere of "The Princess Diaries 2" at the Disneyland Resort August 7, 2004 in Anaheim, California. Lisa Rose/Disney Parks via Getty Images

The “My Prerogative” singer talks in-depth about the emotional decision to turn off his daughter’s life support, the first time he saw the “I Will Always Love You” songstress do drugs, ups and down of their marriage, financial struggles and more. Bobby holds nothing back!

The Newark native, who’s wedding dress is scheduled to be auctioned off, died Feb. 11, 2012 of an accidental drowning and contributing factors of heart disease and cocaine use. While their daughter Bobbi died July 26, 2015 after being found unresponsive in the bathtub.

Catch the intimate interview at 10 p.m. on June 7, on ABC.