There's probably nothing new I can tell you about our girl. She was definitely one of the main female dancers. Almost in every song she was dancing next to Kylie. Also the cameras, which filmed the show for the dvd, seemed to like her.
Nikki has worked with Kylie for the first time. Before that time she was very busy with British boygroup Blue. But of course there's much more she has done:

Emma Bunton, Martine McCutcheon, Phixx, Rosie Ribbons, Sophie Ellis Bextor, Siobhan Donaghy, N-Trance, Crazy Frog, Uniting Nations, James Morrison, Studio B, Westlife, Kanye West

...and many more.

FIGURES AND SKILLS
Hair: Black
Eyes: Blue
Height: 5'7 - 170cm
Dress Size: 10 (40)
Bust: 34 B (75 B)
Waist: 26 - 66cm
Hips: 34 - 86cm
Shoes: 6 (39.5)
Skills: Acting, Freestyle, Modelling, Singing, Jazz