Actress who first gained recognition for portraying Annie James and Hallie Parker, twins separated shortly after birth, in the 1998 Disney comedy The Parent Trap. She won several MTV Movie Awards for her starring role in Mean Girls in 2004 and she also played lead roles in Herbie: Fully Loaded and Freaky Friday.
She began her professional career as a Ford model at the age of three.
Her 2004 debut music album Speak went platinum. She followed up with her certified gold 2005 album A Little More Personal (Raw).
In 2004 she dated actor Wilmer Valderrama. She dated singer and DJ Samantha Ronson from 2008 to 2009. She was born to Michael and Dina Lohan. She has five siblings named Cody, Ali, Ashley, Michael and Landon. She got engaged to Egor Tarabasov in 2016, but they later broke up. In November 2021 she became engaged to Bader Shammas.
She starred alongside Rachel McAdams in Mean Girls.