Videos and Photos. Alexander Rybak performed at Allsang på Grensen 2018 by admin | Jul 19, 2018 | Home, VideoAlexander Rybak performed at Allsang på Grensen 2018 At “Allsang på Grensen” Thursday July 18th, Alexander Rybak performed his Eurovision-song for ESC 2018 “That’s How You Write a Song”. He also made the first...