Billy Joel was in a dark place after Sept. 11, 2001, and he says he used booze in a failed effort to find his way out of it. The 64-year-old Piano Man, who made headlines in the early 2000s not for his music but rather for a spate of automobile crashes, has been through two stints in rehab \u2013 in 2002 and 2005. In an interview with the New York Times, the singer-songwriter says that his drinking and depression stemmed from the 9\/11 terrorist attacks. Joel, however, says that alcohol wasn\u2019t to blame for the crashes. "My mind wasn\u2019t right. I wasn\u2019t focused. I went into a deep, deep depression after 9\/11,\u201d the singer-songwriter said. \u201cI was kind of in a mental fog, and [the crashes] had nothing to do with the booze. \u201c9\/11 just knocked the wind out of me,\u201d he continued, \u201cand I don\u2019t know even now if I\u2019ve recovered from it. It really, really hurt that man could do that to man.\u201d Joel told the newspaper that he drank during difficult times in his life, such as during his multiple divorces. His second stint in rehab began after third wife Katie Lee told him, \u201cYou\u2019re drinking way too much.\u201d Joel stated that he would use alcohol as a medication for his depression. His drink of choice was Dewars White Label--and vodka when things got really bad. Today, he says, the smell of the stuff makes him sick. The six-time Grammy winner, whose hits include "Uptown Girl," "Piano Man" and "Only the Good Die Young," also revealed why he has not written a pop song in two decades. "I got tired of it," he said. "I got bored with it. I wanted to write something other than the three-minute pop tune."