Shhh…. To forget that the Pretty Little Liars final season is just around the corner, we are looking back at the cast's matching tattoos.

Shay Mitchell, Ashley Benson, Troian Bellisario, Lucy Hale, Janel Parrish, and Sasha Pieterse all headed to the tattoo parlor — on Troian's 30th birthday — to immortalize the show on their index finger.

MORE: These Behind-the-Scenes Photos From Season 1 of 'PLL' Will Make You Feel All the Things

The girls each got the initial of their character's name on their "shhh" finger and got emotional as they said goodbye.

"Last night we made sure that Hanna, Spencer, Emily, Aria, Mona and Alison lived on forever," Shay wrote on Instagram. "Such a special night for all of us and the perfect way to end and commemorate this chapter of our lives…"

Along with the simple tattoos, the actresses also rocked matching rings courtesy of their producer Marlene King.

MORE: The 'Pretty Little Liars' Cast Looks Totally Different Without Makeup — See the Pics!

"Mar, we all love our @cartier rings. Thank you. We are always grateful your babies. #sisterhood #marsangels @imarleneking," Janel added on the social media platform.

pll (shay mitchell, lucy hale, sasha, troian) getty

The final 10 episodes of PLL returns to Freeform on April 18th — and fans can expect some major plot twists.

"The physical masks that we played on towards the end of the season really [grew out of] the personality masks that we had on the show," executive producer Joseph Dougherty said at PaleyFest. "Everyone has a false face. Some of them are real, and some of them are plastic. But, yes, there are people walking around who are not who you think they are."

We can't wait! For more photos from their late-night tattoo session, click through the gallery below!