"The Hangover" the movie is back in May with its third and final epic adventure.

The new trailer for "The Hangover 3" movie was released Warner Bros. this week, showcasing's angelic singing voice, dubbing Las Vegas "the worst place on Earth," and proving that the boys, while a few years older and hopefully slightly wiser, are still getting into a lot of trouble.

In this extended trailer above, you get to see a few raw, behind the scenes fan shots of them filming Zach Galifianakis driving on the highway during the giraffe clip that is in the trailer. 

"The Hangover 3" hits theaters on May 24 and is expected to be a blockbuster hit.  It just has become one of those movies that people go see, whether they are impressed or not.  It's just "cool" to go see the Hangover and see what all the buzz is about.  

The movie is directed by Todd Phillips and will feature the original crew that fans fell in love with in the first two movies. Bradley Cooper, Ed Helms, Ken Jeong, Justin Bartha, and Zach Galifianakis all reprise their roles, and "The Hangover 3" also includes John Goodman, and a reported appearance by Melissa McCarthy.

John Goodman plays a thug who enlists the wolf pack to track down the hedonistic Mr. Chow, played by Ken Jeong. This takes the guys all over the world and eventually leads them back to where it all began in Las Vegas.  

In 2009, "The Hangover" became the highest-grossing R-rated comedy of all time.

It will Memorial Day weekend along with "Fast & Furious 6".  So it will be the battle of the "series" movies for the holiday weekend.