Athletic Bilbao fans flood the streets to celebrate Supercopa

Club Athletic Bilbao won their first trophy since the domestic double in 1984 after beating Barcelona 5-1 on aggregate in the Supercopa on Monday. 

When you don't win a title for 31 years, it's perfectly acceptable to celebrate even the least significant title of the season as if you just won the treble. (Plus, you did kind of just beat Barcelona, so, yeah. Go nuts!) 

And that's exactly what Bilbao did: