NEW YORK, Apr 19, 2011/ — GUESS, the American lifestyle brand famous for its trend setting denim and unforgettable campaigns has partnered with Vanity Fair to celebrate the grand opening of the new GUESS 5th Avenue Flagship Store with an exclusive music performance by Jessie J.

The invite-only celebration will take place on Wednesday, April 20 at 6 PM in the brand’s new 13,000 square foot retail space on 5th Avenue at 47th Street, the largest GUESS flagship location in the world.

Although the celebration is an invitation-only occasion, social media-savvy fashion and music lovers will still have the opportunity to attend this exclusive party and performance.

On Tuesday, April 19, GUESS will “tweet” clues from @GUESS_Inc on Twitter to two secret locations in New York City. At each notable spot, a GUESS model outfitted in one of this season’s must-have looks will be on-hand with a limited number of invitations to attend the celebration event.

The first five fashion mavens to find the model in each location and say “I LOVE GUESS AND JESSIE J” will receive a pair of invitations to watch Jessie J perform live in-store on April 20. Fans are encouraged to start following @GUESS_Inc on Twitter now to be sure not to miss the opportunity to attend this memorable event!

“We are so thrilled to celebrate the Grand Opening of our largest flagship location with a cocktail reception featuring a live performance by Jesse J,” said Paul Marciano, Co-Founder, Chief Executive Office and Vice-Chairman at Guess? Inc., “Fashion and music are so inter-connected and we feel that Jesse J, with her cutting edge style and stellar voice, is the perfect performer to headline our opening.”

“I am looking forward to performing at the GUESS 5th Avenue Flagship Store for their opening with Vanity Fair, on the week after my album WHO YOU ARE has been released in the USA,” added Jessie J. “It will be a great celebration for us all!”

With her eye-catching style, infectious personality and unparalleled vocal chops, Jessie J. is commanding attention all over the world as a global music star. The critically-acclaimed, British-born singer-songwriter has already surpassed platinum sales in the UK and garnered over 100 million views for her videos on YouTube/VEVO.

With the recent US debut of her album WHO YOU ARE, led by her chart-climbing lead single “Price Tag”, Jessie J is now poised to take America by storm. To learn more about Jessie J, visit and follow her on Twitter @jessiejofficial.

Situated in the heart of Fifth Avenue, the new GUESS 5th Avenue Flagship Store has a variety of features that combine GUESS heritage and high fashion.

To celebrate the GUESS heritage, commissioned artwork including a denim rug made from over 5,000 vintage jean pockets and a handcrafted installation of over 7,000 authentic denim buttons mounted on a black background, and painted with the original GUESS triangle logo are prominently displayed on the upper level.

Backed by a 12 foot high LED screen playing behind the scenes videos from fashion shows and behind the scenes videos from campaign shoots, the main level of the store features pieces from the women’s collection that are exclusive to US flagship locations.