carson daly transformed into olivia newton-john 's iconic character sandy , while savannah played john travolta 's role danny .
the pair went up against al roker , willie geist and natalie morales , who donned blonde wigs for their performance of sia 's chandelier .
chrissy teigen judged the performances ahead of tonight 's premiere of spike tv 's new show lip sync battle , which she co-hosts with ll cool j .