LIFE FOR THE LIARS, AS THEY KNOW IT, IS TURNED UPSIDE DOWN IN AN ALL-NEW EPISODE OF "PRETTY LITTLE LIARS," PREMIERING TUESDAY, JULY 20 ON ABC FAMILY

"Pretty Little Liars" Author Sara Shepard Makes a Cameo

Burbank, CA (July 1, 2010) - The girls deal with the repercussions of what happened at the homecoming dance in "The Homecoming Hangover," an all-new episode of ABC Family's original series "Pretty Little Liars," premiering Tuesday, July 20 (8:00 - 9:00 PM ET/PT).

In the aftermath of the disastrous homecoming dance, the girls try to sort out the devastation that is left behind. Parents, boyfriends (secret ones, possible ones and current ones), siblings and friends are all in flux, and if the little liars don't act fast, the situation could go from bad to worse. And to top it off, the girls are sitting on some killer information about Toby that some people would die to get their hands on.

Meanwhile, "A" isn't the only one sending Aria text messages as tensions rise in the Montgomery household.

Best-selling author Sara Shepard ("Pretty Little Liars") enters into the world she created as she makes a cameo appearance as a substitute teacher at Rosewood High School.

"Pretty Little Liars" is produced by Alloy Entertainment in association with Warner Horizon Television and is executive produced by I. Marlene King, Oliver Goldstick, Leslie Morgenstein and Bob Levy. The series stars Troian Bellisario, Ashley Benson, Holly Marie Combs, Lucy Hale, Ian Harding, Bianca Lawson, Laura Leighton, Chad Lowe, Shay Mitchell and Sasha Pieterse.

Part of the Disney-ABC Television Group, ABC Family is distributed in over 98 million homes. ABC Family features programming reflecting today's families, entertaining and connecting with adults through relatable programming about today's relationships - told with a mix of diversity, dysfunction, passion, humor and heart. ABC Family's programming is a combination of network defining original series and original movies, quality acquired series and blockbuster theatricals. ABC Family is also the destination for annual Holiday events with "13 Nights of Halloween" and "25 Days of Christmas!" ABC Family. A New Kind of Family.