In the final at the H3 Arena at Fornebu he met 22-year-old Kristian Raanes.
Hegvik was the one who got the most votes from the viewers after they had performed three songs each.
Hegvik performed three songs on Saturday’s final. The people voted “Berlin” by Ry X, while the 18-year-old chose “Somebody Like You” by Keith Urban.
Both he and the finalist Raanes sang the final song “Before I Go”.
Idol has been hosted on TV 2 since 2003.