This past November she walked down the green carpet at the 2010 Latin Grammys wearing a long black dress. Boy! She has stayed in great shape! A lot of people liked her dress, and I must admit that though the dress was risky, she pulled it off.
I came across a very similar dress:
This ASOS Lace Insert Jersey Maxi Dress is only $44.82! You will have a great replica of Lucero's green carpet dress :)
*Pictures from myfashioncents.com and asos.com