Don't know who designed it, but I liked Kristi's black/gold lp dress in Albertville -- perhaps a bit too much of a late 80's/early 90s vibe but overall has enough of a classic look to still be attractive, looking back after 20 years (yikes).
Probably Lauren Sheehan? I think she did most of Yamaguchi's costumes.
Well, Grease was a cool costume, too bad the judges no like that program...
I thought the problem was that it was a hot costume.