my version of Mercy Me, sorry for anyone who doesn't like the way my tab is layed out. i 
find it easier when im writing it.

INTRO x2
E:5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5---------------------------------|
A:--------------------------------9-9-9-9-9-9-9-9-5-5-5-5-5-5-5-5-|
D:----------------------------------------------------------------|
G:----------------------------------------------------------------|

VERSE
E:-------------------------------------------------------------------|
A:0-4-0-5-0-7-0-4-0-5-0-7-0-5-0-4- start again. and repeat 7-8-------| times.
D:-------------------------------------------------------------------|
G:-------------------------------------------------------------------|

INTRO x2
E:5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5---------------------------------|
A:--------------------------------9-9-9-9-9-9-9-9-5-5-5-5-5-5-5-5-|
D:----------------------------------------------------------------|
G:----------------------------------------------------------------|

VERSE
E:---------------------------------|
A:0-4-0-5-0-7-0-4-0-5-0-7-0-5-0-4--| start again. and repeat 4 times.
D:---------------------------------|
G:---------------------------------|

CHORUS
 'oh mercy me'|'..catastrophe'|'no way in hell'| 'live to see this'
E:5-----------|5--------------|5---------------|5--------------|
A:--4h5-------|--4h5h6h7------|-4h5------------|--4h5h6h7------|
D:------------|---------------|----------------|---------------|
G:------------|---------------|----------------|---------------|

CHORUS OUTRO
E:---------------------------|
A:9---9---7--7--5--5--5--5---|  play three times.
D:--11--11--9--9--7--7--7--7-|
G:---------------------------|

then play open A until the singing comes back in.


VERSE
E:-------------------------------------------------------------------|
A:0-4-0-5-0-7-0-4-0-5-0-7-0-5-0-4- start again. and repeat 7-8-------| times.
D:-------------------------------------------------------------------|
G:-------------------------------------------------------------------|


CHORUS
 'oh mercy me'|'..catastrophe'|'no way in hell'| 'live to see this'
E:5-----------|5--------------|5---------------|5--------------|
A:--4h5-------|--4h5h6h7------|-4h5------------|--4h5h6h7------|
D:------------|---------------|----------------|---------------|
G:------------|---------------|----------------|---------------|

CHORUS OUTRO
E:---------------------------|
A:9---9---7--7--5--5--5--5---|  play three times.
D:--11--11--9--9--7--7--7--7-|
G:---------------------------|

INTRO
E:5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5---------------------------------|
A:--------------------------------9-9-9-9-9-9-9-9-5-5-5-5-5-5-5-5-|
D:----------------------------------------------------------------|
G:----------------------------------------------------------------|

play until chorus outro comes back in, then play chorus outro.

then play open A until end of the song.

hope this helps, and again, sorry about the layout.