UPDATE: Things Get Ugly Between Lindsay Lohan and America Ferrera

The catfights at Mode magazine seem to have nothing on the real-life feud between Ugly Betty star América Ferrera, and guest star Lindsay Lohan. The New York Post reports that Lindsay's six-episode contract was cut down to four, at the insistence of América.

One production source said, "It was a mess. Lindsay would show up every day with an entourage of people. She smoked 24/7, and after she left, they had to repaint her dressing room it was such a mess."

In addition, the Mean Girls star "would obsessively cut pictures of herself out of the tabloids like she was creating some sort of scrapbook and refused to go on set until América was there—it was a power play."

One episode, titled "Granny Pants," was about how Lindsay's character, Betty's high school nemesis, would "de-pants" América's character, Betty Suarez, revealing her granny panties in the school yard. But Betty Suarez exacts her revenge and pulls down Lindsay's pants instead. But, "Lindsay wasn't wearing any underwear," the source said.

At least one of Lindsay's pals have leapt to her defense. "Bull [bleep]! Lindsay wears underwear all the time now. She was wearing a G-string. And it was América's fault. They were rehearsing the scene and América wasn't supposed to pull Lindsay's pants down—but she did. Lindsay was so embarrassed, she started crying."

The friend claims rumors of Lindsay's diva-ish behavior have been greatly exaggerated, claiming the star's dressing room had been previously used by the cast of the Fox show Fringe.

"So maybe they messed it up. And an entourage? Yeah, she had her sober companion with her, as well as her manager, assistant and [girlfriend] Samantha Ronson. Her publicist was there a couple of times. But so what?"

Um, a companion, a manager, an assistant, a girlfriend and a publicist, all on set for Lindsay's guest appearance on a TV show? Even Vinny Chase rolls with a smaller entourage than that.

Lindsay's supporter insists the guest star is the victim of abuse from a power-mad América Ferrera. "América was mean to Lindsay. Producers give her too much power. Lindsay didn't do the last two episodes because América didn't like her and got her kicked off."

Lindsay and América's reps are only vaguely attempting to squash the feud rumors. América's mouthpiece says, "América is grateful to have had [Lindsay] on the show and thinks everyone should tune in to see how great the episodes are."

Lindsay's rep responded with, "Lindsay was scheduled for six episodes and is appearing in four but had a lovely time."

This kind of hair-pulling, pants-dropping power struggle between good and evil is the stuff great TV shows (like, say, Gossip Girl) are made of. We knew Lindsay's saintly behavior wouldn't last forever, and we've always suspected there was a little bit of a control-freak diva underneath América's sweet, humble exterior. We're just thrilled that both stars' inner bad girls have come out to play! Hopefully they were able to capture some of the magic on-screen...

UPDATE: According to a "high-level insider" from ABC who spoke to E! Online, Lindsay Lohan was not only given an early boot from her gig on Ugly Betty—at the insistence of the show's star América Ferrera—but they are planning to leave her existing footage on the cutting room floor!

"They don't plan to have her back for more episodes," says the
high-level insider. "And they are cutting her out of the episodes they
have already shot."

According to the sources, says E! Online, the main driving force
for this decision is that Lindsay was not gelling creatively with the
series. "She was not so interested in creating a character," another
reliable insider close to Betty reveals. "She was more
interested in just playing herself, and that doesn't work on a show
like this with such heightened reality."

You know it's the ultimate diss when you fancy yourself a movie star
and you get cut out of a network TV show. We can hear the "Oh snap!"s
all the way from Queens!