The seventh season was confirmed on 8 March 2011, in a press release issued from Sub.
Viitanen also joined the House as a Guest Housemate on Day 70.
24 years old ambulance driver and a student Siv Anita from the Norwegian Big Brother house exchanged with Janica for a period of time.
Straw Swap (Oljenkorsi) is a competition, where nominated housemates compete with each other.
The winner must choose a non-nominated housemate to replace the swapped person for eviction.