The event, to take place from 3 to 31 May next year, will be handled by Borkowski PR, which handled this year’s Body Craze event.
The agency will work alongside Selfridges’ retained PR agency, Camron PR, according to Selfridges head of PR Emily Owen.
Asked whether other agencies could also be hired to work on the promotion, Owen said: ‘Other appointments are possible, but it is early days’.
The account, which was won without a pitch, sees Borkowski secure ‘lead agency’ status.
Selfridges’ stores in Manchester and Birmingham will also be involved in Brasil 40º.