We spotted Fergie wearing a colorful, draping dress at Ipanema beach in Rio De Janerio, Brazil, this week.
She tweeted on Thursday: "Will never forget playing this beach with the (Black Eyed) Peas for New Year's. #tbt Bye Rio. I love you."
During her visit to the South American country Fergie spent time with some youths in one of Rio's poorer districts and visited a school where she watched a dance performance.
In a series of posts online she wrote: "Heard about this school for a long time. So happy I finally get to visit. #solarmeninosdeluz #rio...The coolest kids ever...Just had the best afternoon ever with meus novos amigos Brasileiros."
The Black Eyed Peas star also attended the opening of Rio di Janeiro's Hugo Boss store.
Fergie and her husband Josh Duhamel announced they were expecting in February, writing on Twitter: "Josh & Me & BABY makes three!!! #mylovelybabybump" with childhood photos of themselves.