(With indefatigable recapper Amy Watts on the road this week, Diane Trap steps up to the plate in her stead.)
Cat Deeley is wearing a shiny mosaic dress, like an elegant '70s shower stall. The six remaining dancers open with a routine set to "Scream" by Kelis. The boys are wearing Hammer Pants and the girls are in corsets and tutus, all in black like steampunk goth. It ends with a chorus that says "scream and shout!" which the audience obligingly does.
The top six dancers are Witney, Chehon, Tiffany, Cyrus, Eliana, and Cole. The remaining four dancers will go to the finals next week.
Cat begs for compliments on her dress and calls Sonya out...