Samsung is expected to unveil its latest Galaxy smartphone at a launch shrouded in secrecy.
The electronics giant is said to be anticipating sales of its new handsets to be as high as 10 million per month.%VIRTUAL-SkimlinksPromo%
But it has kept tight-lipped about the design of the mystery product which has been at the centre of much hype in the run-up to its launch.
A teaser picture was published online on Tuesday showing only a shadowed image of the top of a dark handset.
Samsung Mobile US posted the shot on Twitter, writing: "The countdown for #TheNextBigThing has begun. Who's ready for the Global Unpacked Event on March 14?"
Pictures of what was claimed to be the new S4 were released earlier by a Chinese forum.
But observers have questioned the legitimacy of the photographs which show a device with a larger screen than the previous model.
While Samsung has refused to give anything away in terms of what customers can expect from their mystery offering, experts believe the highly anticipated S4 handset could seriously disrupt the mobile phone market.
Among its predicted features are a five inch screen, wireless charging capability and a 13-megapixel camera which would be able to take 360 degree pictures.
Some rumours suggest the device - dubbed Samsung's next big challenge to Apple - could include new eye-tracking technology that follows the user's gaze, automatically scrolling through pages as they are read to reveal more text.
10 of the weirdest celebrity products
Samsung set to unveil smartphone
When it comes to bizarre celebrity products, they don't come much weirder than the Bill Wyman Signature Metal Detector, designed and marketed by the former Rolling Stones bass guitarist.
Apparently, Wyman, who is now in his mid-70s, loves archaeology and has used his own metal detector to find relics in the English countryside dating back to the Roman Empire.
Fans of US president Barack Obama can show their appreciation for the politician by buying a Barack Obama Chia - shaped like the president's head - and growing grass out of the top of it.
And for those who prefer a more historical theme to their garden ornaments, Chias shaped like the heads of George Washington and Abraham Lincoln are also available.
Action star Sylvester Stallone put out a protein-infused pudding designed to appeal to fans keen to build muscles like the big man's.
Unfortunately for them, however, the pudding has now been taken off the market.
Heiress Paris Hilton endorses numerous products, ranging from outfits for your dog to hair extensions.
But the most random Paris Hilton product on the market has to be her line of craft supplies, the Creativity Collection, which features items such as stickers and transfers.
Rapper Snoop Dogg's latest business venture is a "smokeable" lyric book.
"Rolling Words: A Smokable Songbook" contains the words to some of Snoop's biggest hits, including "Ain't Nothing But A G'Thang" and "Gin and Juice" - all on cigarette rolling papers.
Hollywood film director David Lynch loves coffee so, of course, he decided to make his own.
Embarrassingly, the tagline on the David Lynch Signature Cup is "It's all in the beans ... and I'm just full of beans."
Former boxer George Foreman's grill is undoubtedly the most successful, random celebrity product of recent years.
The "machine", which claims to reduce the fat content of your meal by 42%, has earned Foreman more than $200 million over the last decade or so.
Supermodel Heidi Klum has her own line of low-fat sweets, which includes Heidi's Yogurt Dessert Cremes and Heidi's Yogurt Fruit Cremes.
Apparently, the design of the sweets is influenced by icons that Klum uses in her text messages to friends. Strange.
Actor Danny DeVito is such a big fan of Italian liquer Limoncello, he decided to launch one of his own.
Called Danny DeVito's Premium Limoncello, the diminutive star claims that it's "like pouring yourself a glass of liquid sunshine straight from Italy's Sorrentine Peninsula".
Steven Seagal made his name leaping around in action films that allowed him to show off his martial arts prowess. But he is also behind an energy drink called Lightning Bolt.
Advertised as being "packed with vitamins and exotic botanicals", it sounds like just the tipple if you are planning to take on 10 armed men with your bare hands.