A trio of vintage Messi finishes contributed to five stunning Barca goals, the best of them arguably belonging to Luis Suarez, whose brilliant backheel capped a free-flowing move, involving seven different players.
But at the end of a week in which Messi claimed a record sixth Ballon d'Or, the Argentinian etched his name into the history books again after pulling clear of Cristiano Ronaldo's 34 La Liga hat-tricks to stand alone.
The efforts of Messi and Suarez overshadowed Antoine Griezmann's opener but that was impressive too, the Frenchman applying a sumptuous chip after being assisted by his own goalkeeper Marc-Andre ter Stegen.