Get ready for what could end up being one of the most anticipated 'Glee' celebrity cameos ever. Fresh off a comeback TV appearance on 'Saturday Night Live,' Lindsay Lohan is in "final negotiations" to nail down a role on an upcoming episode of the series, according to TV Line.

Lohan would play herself as a celebrity guest judge for Nationals, a position held by Josh Groban and Olivia Newton-John in past seasons. Though an agreement hasn't formally been reached, both TV Line and The Hollywood Reporter say the deal is all but done.

The cameo is interesting because 'Glee' once took a shot at Lohan's mother Dina, with a storyline in which Sue Sylvester beat out LiLo's mom for the title of "Loser of the Year." That caused a minor tiff with the Lohans, but Lindsay's upcoming cameo would seem to indicate there's no lingering bad blood.

A 'Glee' appearance would be the latest score for the actress in her return from personal troubles. She's also in talks to portray Elizabeth Taylor in a Lifetime movie. Lohan hasn't appeared in a scripted series since 2008's 'Ugly Betty.'

Meanwhile, the celebrity guest star lineup on this season of 'Glee' just continues to grow. Lohan would join Jeff Goldblum, Whoopi Goldberg, and Ricky Martin as big-name stars who have appeared in Season 3.