The striker has signed an agreement until 2024, Nettavisen is informed. The Oslo club itself confirmed the news a short time later on Monday morning.
Kamara comes from Häcken in Swedish football where he has played little in the previous season.
Now, however, he continues in Norwegian football and the Obos league in 2024.
Watch everything from the Obos league on direct sports.
The 34-year-old passed the medical test on Wednesday morning and has signed an agreement until the 2024 season. He is already training with his new club on Wednesday.
– It feels very good to be at home. I grew up in Bislett and when I was young we would sneak into the stadium and watch Super-Musa and the gang win matches. My relationship with Vålerenga is incredibly good, and I am looking forward to getting to know the people here better and to playing and scoring in front of Østblokka, he says to the club’s website.
Sports manager Joacim Jonsson is also happy to get Kamara in place.
– We are very satisfied with the people we have brought in and that Ola is now in place. We are getting close to a full squad, but we will use the last eleven days to see if there is anything more that needs to be done. We are very happy with the current squad, but in a long season you need many players, he concludes.