Wiz Khalifa, "See You Again" is the most viewed videos of all time.
With over 2.9 billion views (and counting) “See you again” passed Psy’s Gungnam Style to become the most watched YouTube video ever! The song was commissioned for the soundtrack to Furious 7 and is a tribute to Paul Walker (Brian O’Conner in the movies) who died in a car accident in 2013.