pretty little liars stars good morning america Unlock 'Pretty Little Liars' Season 5 spoilers with secret passwordUPDATE: The secret password is “Marlene TellsAll.” Find out what the video says here.

The “Pretty Little Liars” stars appeared on “Good Morning America” Tuesday (March 18) to tease the Season 4 finale. But the stars also revealed a special sneak peek fans will get for Season 5.

Right after the episode airs, fans can go to (the site will go live following the finale) and enter a password. The first part of the password, as revealed on “GMA,” is “Marlene,” as in executive producer Marlene King. The second part will be revealed in the latter half of tonight’s finale. So, bookmark it, “PLL” fans. Season 5 goodies coming right up.

The girls also shared a few things about the finale, with Sasha Pieterse in particular saying that it’s a big episode.

“We have a lot of secrets and answers, so we’re all satisfied, but I think the fans especially are going to be extremely happy,” says Pieterse. “I’m excited for everyone to see it because I think everyone needs to see the emotional side of Alison too. She’s very vulnerable and she’s been a victim, so she’s not mean all around. There are different shades to her.”

“Pretty Little Liars” Season 4 finale airs Tuesday at 8 p.m. ET/PT and returns for Season 5 Tuesday, June 10 on ABC Family.

Posted by:Andrea Reiher

TV critic by way of law school, Andrea Reiher enjoys everything from highbrow drama to clever comedy to the best reality TV has to offer. Her TV heroes include CJ Cregg, Spencer Hastings, Diane Lockhart, Juliet O'Hara and Buffy Summers. TV words to live by: "I'm a slayer, ask me how."