Because nothing is more annoying than watching a YouTube video with your head tilted to the left.
In 2014 you'd think that the world knew the correct way to hold a mobile phone whilst filming something, but apparently not.
Funny new footage has emerged from a Childish Gambino concert in which the '3005' rapper takes a time-out from performing on stage to jump into the audience and correct a fan's filming technique, turning it the right way round.
"There you go" Gambino tells the excited fan.
Hit play above and watch from the 15 second mark.