In glittering costumes spun of gold, an ethereal group of performers leap across the set tumbling aboard an elongated trampoline embedded in the stage. Like medievals warriors penetrating the depths of a mythical forest, the tumblers not only demonstrate their undeniable acrobatic prowess and strength, but also their grace in a dance whose manner is unique to Cirque du Soleil.

Crafted with equal parts speed, danger and artistry, tumblers draped in gold take off from solid ground and tumble along soft diagonal strips of trampoline material installed flush with the stage, which has opened up to reveal a fantastic display of athleticism as gymnastics alchemize into fine art as acrobats dressed in royal gold flip with lightning speed. The illusion is one of golden birds hovering in suspended flight. Debra Brown describes the creation of fast track as something akin to groping your way through a pitch-black room at top speed. "(Developing) fast track was a puzzle," she said. "There were lots of doubts. I was constantly demanding the trust of the artists. They had no idea where I was going with it. Sometimes, neither did I."

Accompanying the powerful Fast Track act is the song "Irna" that includes a synthesizer bass line with the other instruments intertwining with the basic theme. On the CD, a brass section offers an off-beat blast that is uncommon for Cirque du Soleil music. During the show, the "Irna" frenzy halts and the fast track becomes a ballet track with the song "Valspena" that once again features a passionate vocal performance by Francesca. Joining The White Singer for the first time is her alter ego, The Black Singer, played by Eve Montpetit. Their harmony on this beautiful theme is spine tingling. But, just as the listener is lulled into a trance, "Irna" returns with more power to complete the Fast Track act's climax.