West Ham came from a goal down to thrash Arsenal and win the FA Youth Cup for the first time since 1999.
Omari Benjamin gave Jack Wilshire's Gunners an early lead, but a magnificent George Earthy strike into the top corner pulled West Ham level.
Callum Marshall converted Gideon Kodua's fizzing cross to complete the turnaround, before captain Kodua's sensational lob over Noah Cooper made it 3-1 before the break.
Kaelan Casey nodded home Ollie Scarles' cross to make it 4-1 with 12 minutes remaining, and Josh Briggs completed the scoring in front of 34,124 fans at Emirates Stadium.