Johansson to co-host Nobel Peace Concert

Scarlett Johansson will co-host this year's Nobel Peace Concert.

The Lost In Translation star will join headline act Diana Ross at the ceremony in honour of the 2008 Laureate, Martti Ahtisaari.

The 23-year-old actress said she was "truly honoured" to have been offered the role.

Organisers last week announced the lineup for the 15th annual event, which includes Feist, Dierks Bentley, Julieta Venegas, Seun Kuti and Marit Larsen.

Ahtisaari, the former President of Finland, is being recognised for "his important efforts, on several continents and over more than three decades, to resolve international conflicts". The concert will take place in Oslo on December 11.