EXCLUSIVE: Diddy did it. So did Madonna and Prince, and now you can add Lindsay Lohan to the list of celebrities who are opting for a single moniker, with the troubled star's mom, Dina, confirming to me that Lindsay plans to remove "Lohan" from her official name.

"Lindsay is dropping the Lohan and just going by Lindsay," Dina tells me, exclusively. "Plus, me and [younger daughter] Ali will be officially changing our last names back to my maiden name, Sullivan."