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That famously wholesome duo is back together and at it again. But this time, that wholesomeness is tempered by a good dose of Las Vegas as Donny and Marie Osmond hit Sin City.

Backed by a nine-piece band and a cast of dancers, Donny and Marie bring back the best they have to offer, mixed with the modern marvels of a Sin City production show. The result will, yes, make the world go away.

Sept. 9 marks the beginning of a yearlong engagement for the siblings in the Flamingo Showroom. The show is produced by Danny Gans and Chip Lightman, and takes place on a custom-built stage with multiple video screens. As new meets classic, Donny and Marie remind the world, once again, why this iconic brother-sister team is so beloved.

These Osmonds have been performers for about as long as their voices could change octaves. It all began with The Andy Williams Show. Donny was just 5 years old, and Marie was only 3, when Williams placed her on his lap and introduced her as "the youngest Osmond brother." The audience ate it up. Coming from a long line of singers, Donny and Marie followed their family tradition and went on to become the youngest hosts of a primetime network series with The Donny & Marie Show in 1976. The two returned to the stage in 1998 with their talk show, Donny & Marie.

Still media darlings, Donny and Marie hosted the Miss USA pageant and America's Favorite Mom on NBC earlier this year. They've joined forces with director and choreographer Barry Lather for their Flamingo show. Lather has worked with Michael Jackson, Janet Jackson, Paula Abdul and a whole host of other famous dancers. He earned an Emmy nomination in 2000 for his choreography work on the Miss America pageant, which also featured Donny Osmond.

Reuniting to perform some of their greatest hits, such as "Ain't Nothing Like the Real Thing," "I'm Leaving It All Up to You," "Deep Purple" and more, this is Donny and Marie's first extended engagement in nearly 30 years. The duo recently completed a sold-out, weeklong run at MGM Grand before moving on to the Flamingo. It's a reminder of just how timeless the sibling team really is. Especially when seasoned with a hint of Vegas.