Chosen as one of People Magazine's 50 Most Beautiful People. 
While preparing for his role as a heroin addict in the movie Requiem for a Dream (2000), Jared lost 28 pounds, starved himself and denied himself the pleasure of then-fiancée Cameron Diaz's bed for two months. Leto admits that playing the part of Harry Goldfarb was "sadomasochistic... the hardest thing I've done".
In many of his movies, he is disfigured in some way. In Requiem for a Dream (2000), his arm becomes infected and is amputated. In Fight Club (1999), his face is beaten beyond recognition. In Panic Room (2002), he is badly burned. In American Psycho (2000), he is brutally murdered with an ax and, in Lord of War (2005), he is shot several times in the chest.
Was engaged to Cameron Diaz. [2000-2002]
Had a part in Phone Booth (2002) which was deleted from the final cut.
He turned down a key role in Flags of Our Fathers (2006) in order to commit his time to his band, 30 Seconds to Mars.
Had a dog named Judas who died in May 2007.
He gained 62 lb for his latest role, playing Mark David Chapman, in Chapter 27 (2007). Then lost the weight by going on an all-liquid diet consisting of lemon juice, maple syrup, cayenne pepper, and water. He lost 20 lb in 10 days.
Has been diagnosed with gout after undergoing dramatic weight loss. He packed on 62 pounds for his role in Chapter 27 (2007) [August 2006]
Was writer/director Joby Harold's first choice to play "Clayton Beresford", the male lead in 2007's Awake (2007). He later backed out due to scheduling conflicts with his band, 30 Seconds to Mars, and was replaced by Hayden Christensen.