A-ha - summer moved on, 2000

"The longest same-pitch vocal note in a song that made the UK’s Official Singles Chart was set at 20.2 seconds (eight measures), as performed by A-ha frontman Morten Harket (Norway) on “Summer Moved On”, the band’s No.33 hit from 2000. Harket’s lung-busting effort starts at 3 minutes 12 seconds on the word “ask”. “Summer Moved On” was taken from A-ha’s 2000 album Minor Earth, Major Sky."