Mariachi band serenades A's fans in O.co Coliseum stands (VIDEO)

The A's fans inside O.co Coliseum were treated to more than baseball when a mariachi band popped up in the left-field stands and serenaded the crowd during the eighth-inning.

The color-coordinated musicians added a little local flavor to everyone's peanuts and hot dogs.

And the musical support didn't didn't seem to hurt as the A's beat the Mariners 6-1.



At this point the brass and strings might be less annoying than the wave, but when does the di-di-di-dada di-di-di-dada start to get on some fans nerves: