Practice along with my video 
http://youtu.be/m3KzuJvKDw4 

DROP D TUNING 
Tune your low E (the string closest to your face) to D. 

e|----------| 
B|----------| 
G|----------| 
D|-0~--0----| 
A|-0~--0-7b-| 
D|-0~--0----| 

e|---------------------------------------| 
B|---------------------------------------| 
G|---------------------------------------| 
D|-3-------|-5-------|-7-------|-8-------| 
A|-----5---|-----5---|-----5---|-----5---| 
D|---0---0-|---0---0-|---0---0-|---0---0-| Palm mute/deaden the '0's 

e|-------------|-------------|-------------|--------------| 
B|-------------|-------------|-------------|--------------| 
G|-------------|-------------|-------------|--------------| 
D|-3-----------|-5-----------|------5------|------8-------| <- I didnt play that '8' in my video 
A|------5------|------5------|-8-----------|-7------------|    but that's what I was supposed to play. 
D|---00---0000-|---00---0000-|---00---0000-|---00---0000--| Palm mute/deaden the '0's 

e|------------|------------|-----------|-----------| 
B|------------|------------|-----------|-----------| 
G|------------|------------|-----------|-----------| 
D|-333--------|-555--------|-777-------|-888-------| 
A|-xxx-555555-|-xxx--55555-|-xxx-55555-|-xxx-55555-| 
D|-000-000000-|-000--00000-|-000-00000-|-000-00000-| Palm mute every note 

e|------------|------------|-----------|-----------| 
B|------------|------------|-----------|-----------| 
G|------------|------------|-----------|-----------| 
D|-333--------|-555--------|-----55555-|-----88888-| 
A|-xxx-555555-|-xxx--55555-|-888-xxxxx-|-777-xxxxx-| 
D|-000-000000-|-000--00000-|-000-00000-|-000-00000-| Play ALL notes open 


e|----------------------------------| 
B|----------------------------------| 
G|----------------------------------| 
D|-x-0-0~---0--------5/7~--3/5~-----| 
A|-x-0-0~---0-7b--5--5/7~--3/5~---0-| 
D|-x-0-0~---0-----0--5/7~--3/5~---0-| 
Palm mute the last '00' 
   D U D <-Strumming pattern for that. It's real quick so I thought I'd let you know.