Question: When was one of the casts in "High School Musical 2" born? 

Context paragraphs:
High School Musical 2: Non-Stop Dance Party: High School Musical 2: Non-Stop Dance Party is a remixed album of the soundtrack, "High School Musical 2".  It was released first in the UK and Southeast Asia on December 24, 2007.  The entire album was available to listen to on Disney X D UK from December 21 to December 23, a day before the album was released.  All of the tracks were remixed by Jason Nevins.  Music videos have been released on Disney Channel for "Bet on It" and "Fabulous".  Although many fans have stated that the back cover's track listing is incorrect, this is not true.  In fact, it only states songs included on the album.  Thus, there is no real track listing to be found.

High School Musical (book series): The first book in the High School Musical series, was "High School Musical: the Junior Novel", the novelization of the successful first film was released early June 2006, by Disney Press.  This novel hit number one on the "New York Times" best-selling list best-selling list and remained on the list for sixteen weeks.  As of August 2007, the novel has sold more than 4.5 million copies with 1 million copies of the novel's follow-up, "High School Musical 2: The Junior Novel", being shipped to American retailers.  Shortly after the success of the original novel, Disney announced that a book series, entitled "Stories From East High", would be published in February 2007 with a new book being published every 60 days until July 2008.  However, books from the series have been scheduled for publication after the originally announced date.  A complete list of books is provided below:

High School Musical 2: High School Musical 2 is the second film in the "High School Musical" series.  The World Premiere took place on August 14, 2007, at Disneyland, in Anaheim, California.  The primary cast, including Zac Efron, Vanessa Hudgens, Ashley Tisdale, Lucas Grabeel, and Corbin Bleu attended the event.  The film debuted on television on August 17, 2007, on Disney Channel in the U.S., and on Family in Canada.

Vanessa Hudgens: Vanessa Anne Hudgens (born December 14, 1988) is an American actress and singer.  After making her feature film debut in "Thirteen" (2003), Hudgens rose to prominence portraying Gabriella Montez in the "High School Musical" film series, which brought her significant mainstream success.  The success of the first film led to Hudgens acquiring a recording contract with Hollywood Records, with whom she released two studio albums, "V" (2006) and "Identified" (2008).  In addition to "High School Musical", Hudgens has also appeared in various films and television series for the Disney Channel.

High School Musical 2: Work This Out!: High School Musical 2: Work This Out!  is a musical adventure game that allows the player to play as Sharpay, Troy, Gabriella, Ryan, Chad and Taylor in storylines that extend beyond the "High School Musical 2" movie sequel.  The game features all 10 songs from "High School Musical 2".

High School Musical: High School Musical is a 2006 American teen/romantic comedy musical television film and the first installment in the "High School Musical" trilogy directed by Kenny Ortega.  The movie was filmed in 2005 in Salt Lake City.  Upon its release on January 20, 2006, it became the most successful film that Disney Channel Original Movie (DCOM) ever produced, with a television sequel, "High School Musical 2," released in 2007 and the feature film, "," released theatrically in October 2008.  It is the first and only DCOM to have a theatrical sequel.  The film's soundtrack was the best-selling album in the United States and Cradle by Peter Strudwick reaching number 1 on the American Charts for 2006.

I Don't Dance (High School Musical song): "I Don't Dance" is a song performed by actor/singers Lucas Grabeel and Corbin Bleu in the television movie "High School Musical 2", released in 2007.  It is one of seven songs from the soundtrack "High School Musical 2" to reach the "Billboard" Hot 100.  It was also named as the official theme song for the 2007 Little League World Series.

David Nessim Lawrence: David N. Lawrence (born 1960) is an American musical composer known primarily for his work on television and movie scores.  In 2002, he won an ASCAP award for his work on "American Pie 2".  He also composed music for the Disney Channel Original Movies "High School Musical", "The Cheetah Girls 2", "High School Musical 2", "High School Musical 3", "Jericho (TV Series by CBS 2006)" and "".  He also composed additional music for three Sesame Street videos like "Elmo Says BOO! ," "Big Bird Gets Lost," and "Let's Eat!  Funny Food Songs," where he was credited as David Lawrence.

High School Musical: Sing It!: High School Musical: Sing It!  is a video game for the Wii and PlayStation 2, based on the popular 2006 television movie "High School Musical" and its 2007 sequel "High School Musical 2".

What Time Is It? (song): "What Time Is It?"  is the opening musical number and first single from the Disney Channel Original Movie "High School Musical 2".  It is featured on the "High School Musical 2" soundtrack, and is the first song off the "High School Musical 2" soundtrack.

Supporting paragraphs: High School Musical 2 Vanessa Hudgens
Answer: December 14, 1988