The long-troubled singer (who dropped out of the Coachella festival in 2009 but took the stage with Mark Ronson in July and performed a surprise set in October) will play five dates in Brazil, followed by a show in Dubai.
She arrived in Brazil on Wednesday looking thin, but relatively healthy, according on an onlooker.
The tour, called the Summer Soul Festival, runs from Saturday until Jan. 15, and it looks like its star is resting up for the gig. Since her arrival in Rio de Janeiro Wednesday, Winehouse doesn't seem to have left her hotel. She appeared on the veranda Thursday morning and later hit the pool in a pink bikini.
Reporting by RENNIE DYBALL and DOM PHILLIPS