Cory Monteith: The greatest loss to "Glee" fans, Cory Monteith's untimely death at the age of 31 left the world shocked. The actor was found dead in a hotel room in Vancouver on July 13, 2013.

Monteith was open about his drug abuse and his autopsy report confirmed that the talented actor died because of drug and alcohol overdose. Montieth was dating the Glee Co-star Lea Michele and reportedly they had planned to get married before Monteith's tragic passing.

Cory was one of the very few talented stars Hollywood had and his passing has created permanent void in the life of his fans and especially in the life of his Glee co-star. RIP Monteith.

Lisa Robin Kelly: The "That 70's Show" Star Lisa Robin Kelly passed out in her sleep on August 14. Kelly who portrayed the character of Laurie Foreman sister of Topher Grace had checked into a Rehab last week, following her substance addiction.

The actress was 43-year-old and unlike her co-stars Ashton Kutcher, Grace and Laura Prepon, Kelly was sidelined after the show but she remained in limelight because of her personal troubles. RIP Lisa Robin Kelly.

Gia Allemand: After an apparent suicide attempt on 12 July, the finalist of 2010 season of The Bachelor succumbed to her injuries on 14 July at the age of 29. After he suicide attempt she was rushed to the hospital in New Orleans by her boyfriend NBA player Ryan Anderson. On her final day, Allemand was in critical condition and was kept on the life support system but she was declared dead after her brain and other organs failed. RIP Gia Allemand.

Hollywood Addiction