Please ID this band/song in a Pepsi commercial

[sonicsink]

Hi everyone!
You know the Pepsi comercial where the kid is at an outdoor concert and he’s all muddy,then someone turns the hose on the crowd and he realizes the guy beside him is his dad? What is the band/song that is playing??
Thank you!!

[I_can_t_believe_that_s_butter]

MXPX.

Luckily though, Google also supplies us with the answer, the song is called “Well Adjusted” and is off their album “Before Everything and After” which won’t be released until September 16th 2003.

from here.