Vanessa Hudgens and Zac Efron, aka Zanessa, announce Christina Aguilera at the 2008 MTV Video Music Awards at Paramount Pictures Studios in Los Angeles on Sunday.

Vanessa announced in Matthew Williamson and Jimmy Choo shoes. Zac announced in Louis Vuitton.

High School Musical co-stars Ashley Tisdale and Corbin Bleu were also on-hand to present. Tizz announced in Roberto Cavalli.

English comedian Russell Brand will host the event while Britney Spears will be opening up the night with a surprise performance. Kaba Modern and Fanny Pak of America’s Best Dance Crew will battle it out to determine who will present the Best Dancing in a Video award.

15+ pictures of Vanessa Hudgens and Zac Efron together at the 2008 MTV VMAs…