Feyenoord are Eredivisie champions for the first time since 1999 after a 3-1 final day win over Heracles.
Captain Dirk Kuyt scored twice to give Feyenoord a 2-0 half-time lead at De Kuip and completed his hat-trick late on.
The former Liverpool and Fenerbahce forward is in his second spell at Feyenoord and opened the scoring in the first minute.
It was the Holland international's 100th Feyenoord goal and strike number 101 followed after 12 minutes as any nerves were settled early on.
Fireworks saw the celebrations start early for Giovanni van Bronckhorst's team before Kuyt scored a third from the penalty spot.