John, Paul, George and...El Shafee?

Fourth member of Jihadi John ISIS cell known as the 'Beatles' is a 'softly spoken' former fairground mechanic who was radicalised in weeks at mosques in London

And now, a Scaramouche exclusive--the ISIS "Beatles" sing one of their biggest hits:

It's been a hard day's jihad,

And we've been killin' up a storm.

It's been a hard day's jihad,

For us beheadings are the norm.

But when we say "do or die"

It's so we can crucify

And make you feel real scared.

It's been a hard day's jihad,

And we're the fiercest dudes around.

It's been a hard day's jihad,

And to jihad we're duty bound.

And one cannot overstate

How it's for our caliphate

The one that we have declared.

We're in Homs

And we're in Raqqa, too.

Our strongholds

Will hold until Assad's through, oo!

It's been a hard day's jihad,

And we've been killin' up a storm.

It's been a hard day's jihad,

For us beheadings are the norm.

But when we say "do or die"

It's so we can crucify

And make you feel real scared.