The following has been copied from my youtube video's description, where I 
actually played the song:

REGULAR SHOW IS AWESOME

I first heard the song and I just had to share you guys on how to get play the intro.

I figured out the intro by slowing the song on Sony Vegas and played it out by ear. Just 
bear with me while I play it since I'm not that good of a guitar player but at least 
you'll have something to get a head start on the song and maybe you will get to 
post videos of your own covers and even tabs online.

So here's my the tablature for the song I came up with...



Intro:
|------------------|
|------------------|
|-----7----| Play--| 2X
|-----7------------|
|-----5------------|
|------------------|

ALTERNATE PICKING
|---------------------------------------­---------|
|---------------------------------------­---------|
|--7------------------------------------­---------|
|-----10--7--10--7----------------------­---------| Repeat this about 7 or 8 times
|----------------------10--8--7---------­------7--| (Listen to the song and play along to see)
|----------------------------------10--8­--10-----|

and play this note after the above riff...

|------------|
|------------|
|------------|
|------------|
|------------|
|---10*------| *Let ring.

ADDITIONAL NOTES:
There are two guitars that harmonize on the track (you can also use one guitar with the 
delay effect or a loop pedal to achieve the harmonizing guitars) but it's up to you to 
figure out the other two, I don't have time to.