“The higher Lindsay got, the more arrogant and mean she became,” said a former party pal of jail-bound ‘Mean Girl’ Lindsay Lohan. Tattlers at The National Enquirer report that the twenty-one year old actress has been bad-mouthing fellow Hollywood starlets, like Jessica Simpson (whose recent film ‘Blonde Ambition’ has been relegated to the World Of Straight-To-DVD) and Scarlet Johansson.

“She ranted and raved about her talent, claiming “I’m the greatest actress in the world! No one’s even close to me right now!” And then she then proceeded to viciously slam a slew of young actresses, who she considered to be her competition.”

According to Lindsay: “Scarlett Johansson is “ugly, fat, and has no talent.” Jessica Simpson “can’t sing and is as dumb as (bleep).”

Sienna Miller is a “no talent crackhead.” And Keira Knightly is a “flat, shallow, cardboard cutout of an actress.” Oh and Jessica Biel is a “phony, scheming joke of an actress,” the insider dishes.