Morten will be performing at the annual "VG-lista Topp 20"-show at Rådhusplassen in Oslo on 20 June.
This is the largest concert in Norway, with an audience between 50.000 - 100.000 people every year (depending on the weather). And it's free entry.
The show is broadcast live on NRK 1 in Norway.
Among the other artists performing are Katie Melua, Kurt Nilsen, Espen Lind, Madcon and Kaizers Orchestra.
I guess Morten will do a couple of songs from "Letter From Egypt".