Lindsay Lohan is reportedly joining the ranks of Madonna, Beyonce and Cher by dumping her last name. Mom Dina tells E! Online, "Lindsay is dropping the Lohan and just going by Lindsay. Plus, me and [younger daughter] Ali will be officially changing our last names back to my maiden name, Sullivan."

The name change, according to an insider, is Lindsay's way of starting over and distancing herself from her dad Michael Lohan. But he's not buying it. "I don't think it's true at all," he said during a visit to Jane Velez-Mitchell's HLN show. "I would never imagine any of my kids changing their name, especially Lindsay." Do you think Lindsay will really dump the Lohan from her name?