Fergie landed in Brazil, in a black (the original is in white) Fall 2011 Isabel Marant mini.
The woven, wool and tassle mini with full sleeves was worn by Fergie with a slicked back bun, aviators & peeptoes.
This particular dress has been very popular with celebrities this season.
Demi Lovato wore it in LA (click here) & Kim Kardashian (click here) in Australia.
Image Sources: nymag.com/fashion, justjared.buzznet.com