Day and night!

The Vampire Diaries' Nina Dobrev joined a slew of small- and big-screen celebs at Comic-Con 2011 in San Diego this week. And paying homage to her dual-role in the CW teen drama, we saw her do a 180 in two dresses that could be placed at completely different ends of the style spectrum.

At the Camp Playboy Party on Friday night, the starlet brightened things up in a one-shoulder multi-colored Dalia MacPhee frock and purple satin peep-toe pumps by Brian Atwood.

The next evening at the Cowboys & Aliens premiere, Dobrev, 22, showed off her darker side in a black and white lace Zuhair Murad Resort 2011 mini and bright red Brian Atwood pumps.

Both nights the actress added a pop of color to her ensemble with a bright red lip.

For her past two red-carpet appearances, the young star has tapped Georges Chakra Couture for her formal wear, having worn a ruby and gold design at the 2011 MTV Movie Awards and a blue and green iridescent number at the 2011 MuchMusic Awards.

Poll

Which Dress Do You Like More?

The multi-colored Dalia MacPhee
The black and white lace Zuhair Murad
2011 Total Votes
Which Dress Do You Like More?