London
(ANI):
Russell
Brand
and
his
fiancee
singer
Katy
Perry
reportedly
had
their
first
public
tiff
at
pre-Grammys
bash,
thanks
to
the
comedian"s
odd
sense
of
humour.
The
couple
was
walking
the
red
carpet
when
Brand
started
joking
about
Hitler
and
drugs,
reports
the
Mirror.
As
he
was
welcomed
to
the
Clive
Davis
party,
he
quipped:
“Sorry,
I
thought
this
was
a
Clive
Dunn
event.
I
thought
we"d
be
here
talking
about
Dad"s
Army,
I"ve
been
misled." He
then
started
singing
the
hit
sitcom"s
theme
tune,
Who
Do
You
Think
You
Are
Kidding
Mr
Hitler?
The
former
drug
addict
then
started
on
about
cocaine.
He
said:
“Grammys…
I
know
why
it"s
called
that.
“That"s
how
much
coke
you
need
to
cope
with
it."
Katy,
who
caught
the
end
of
this
exchange,
threw
a
hissy
fit.
However,
Katy
wasn"t
pleased.
She
had
planned
to
use
the
party
to
introduce
her
lover
to
all
of
her
celeb
pals,
including
Rihanna
and
Taylor
Swift,
and
wanted
him
on
his
best
behaviour.
She
told
him:
“Stop
it
and
behave!
I
don"t
want
to
upset
the
Grammys,
I
want
one."
Fortunately,
the
newly
engaged
couple
was
all
smiles
again
by
the
time
they
sat
down
for
dinner
next
to
Rihanna.
A
source
said:
“Katy
knows
that
Russell
can
play
up.
Before
the
party
she
was
just
hoping
her
girlfriends
got
his
sense
of
humour
like
she
does.
But
Rihanna
and
Taylor
got
on
with
him
like
a
house
on
fire.
It
was
good
to
see
Rihanna
laughing."