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Who topped the 'Celeb Heat Index?'

<div class="meta image-caption"><div class="origin-logo origin-image ap"><span>AP</span></div><span class="caption-text">Lindsay Lohan was reportedly attending Alcoholics Anonymous meetings in December of 2006. Lohan then admitted herself to a medical rehabilitation facility in January 2007. The starlet has been closely watched by the paparazzi throughout her career. Lohan is seen in this photo at Sephora&#39;s tenth anniversary celebration, July 17, 2008 in New York. (Evan Agostini)</span></div>
December 30, 2008 12:00:00 AM PST
For pop star Britney Spears, 2008 has been a much more stable year than 2007. But even without any head-shaving headlines this past year, the public's fascination with Britney endures.