Samsung is building hype for its announcement next week of the Galaxy S IV with a new teaser video posted online Monday.

Samsung is building hype for its announcement next week of the Galaxy S IV, offering a new teaser video posted online.

The video features an actor playing a Samsung executive and a little boy, who is labeled as the "secret messenger" for the Samsung event.

The boy is excited by a big white box that is labeled with teaser graphics on its side. The Samsung executive and the boy open the box, and a bright light illuminates their faces, hiding what's inside.

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The boy is then hounded by a little girl who is determined to find out what is inside the box.

"Go away, Jane," the boy yells before the video ends with the words "To be continued ..."

The Galaxy S IV is to be unveiled in New York at 4 p.m. PDT on March 14. The announcement is to be available live on the Samsung Mobile YouTube channel.

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