Drake previously went viral after singing Argentina's unofficial World Cup anthem during his Lollapalooza Argentina performance. Also, it's hardly strange to see the 6 God express some affection for previous year's winners.
After all, he gambled on the team's triumph, but he lost since they didn't win in 90 minutes as he predicted. Yet, he enthralled the enthusiastic audience and only needed to sing the first word of the song "Muchachos" for everyone to join in.
For anyone interested, the song is called "Muchachos, ahora nos volvimos an ilusionar" and was written by La Mosca Tse-Tse.