After her flop performance as host of the Saturday Night Live, there were reports that the "Mean Girls" actress was a "total nightmare" to work with and is messed up in the set of hit musical television show "Glee."

E! News reported that LiLo was three hours late for work and when she got there, she just do not want to be in the set. The actress did not memorize her lines and kept disappearing so an agent has to find her when she needs to shoot the scenes.

The 25-year-old actress is shooting follow-ups after shooting majority of her role last week. She was seen taking a cigarette break in between takes.

Lindsay Lohan made a pretty good impression to the cast and crew last week after filming most of her appearance in the show. However, the week after, she was perceived as disrespectful of everybody's schedule.

Meanwhile, other members of the Glee cast including Lea Michele, Dianna Agron and Heather Morris were spotted shooting scenes in matching red and black dresses. Lindsay had allegedly been out at a Hollywood party on Tuesday and then showed up late for her call time yesterday.

Lindsay's tardiness in the set was proven by Dot Marie Jones who play football coach Shannon Bestie who tweeted, "Gonna be a long day!! Some ppl show up late and just throw a wrench in things. Not cool! I'd rather be an hour early (I was) than 5 minutes late."

However, Lindsay's representative Steve Honig denied all of the allegations and said that there is a mix up in the schedule. He also said that, "this is a classic example of people trying to bash Lindsay. She busted her ass yesterday and is back on set again today."

People think that if Lindsay wants to make a comeback, she should be more professional.