After staging preview performances since November 26, 2004, Cirque du Soleil officially premiered its fourth resident show in a casino resort on the Las Vegas Strip on February 3, 2005. Joining the ranks of Mystère at T.I., “O” at Bellagio and Zumanity at the New York, New York Cirque du Soleil's newest creation, entitled KÀ, is housed at the MGM Grand. KÀ is Cirque du Soleil's biggest and most ambitious production to date, both in terms of physical size and budget.

Directed by Canadian theatre and film vanguard Robert Lepage, and ringing in with a purported price tag of $220 million USD, an alleged weekly running cost of $1 million USD, a cast of 75-80 performers and a crew of 158 stage technicians, KÀ aimed to reinvent and revolutionize the world of live theatre, and in many ways the Cirque du Soleil itself.

KÀ tells the saga of Imperial twins who, after being separated, go on an adventurous voyage to fulfill their linked destinies. Their journeys take the boy and girl through a succession of challenging landscapes and, on the verge of adulthood, they encounter love, conflict, and the duality of KÀ - the fire that can unite or separate, destroy, or illuminate. The show's title is inspired by the ancient Egyptian belief in the "ka", an invisible spiritual duplicate of the body that accompanies every human throughout this life and into the next.

The characters of KÀ inhabit a world of many tribes and factions. These tribes are largely segregated from each other and some tribes are in conflict with others. The story of KÀ brings together the different peoples of this world to meet their collective destiny.