"It’s been 10 years. There are so many times I still find myself wanting to tell you about something funny or strange or exciting," Mandy, 35, captioned an old photo of the late deejay pointing at a rainbow.
She continued, "I miss your contagious, guttural laugh and your hugs. The best hugs. Miss you every day but today is always hard.”
DJ AM was found dead in his New York City apartment at the age of 36 on August 28, 2009.
His official cause of death was an accidental overdose from the combination of cocaine, Oxycodone, Vicodin, Ativan, Klonopin, Xanax, Benadryl and Levamisole.
Mandy and the music legend dated from January to March 2007 but remained close friends after their breakup.
DJ AM maintained several years of sobriety before he relapsed after surviving a plane crash with Travis Barker in 2008.