Hilary
Duff
used
to
destroy
her
sister
Haylie's
underwear.
The
'Stranger'
singer
has
revealed
she
fought
constantly
with
her
older
sister
-
who
is
now
launching
her
own
music
and
acting
career
-
and
would
often
play
cruel
tricks
on
her.
Hilary
told
Top
of
the
Pops
magazine:
"If
Haylie
had
friends
over
to
stay
when
we
were
little,
and
they
left
me
out,
I'd
freeze
their
underwear!
"I'd
wet
the
knickers,
put
them
in
the
freezer
and
snap
them
to
ruin
them.
"Whatever
I
did,
Haylie
always
got
me
back.
Older
siblings
know
how
to
be
good
fighters
-
when
you're
younger
you
just
hit
back.
I'm
sure
there
were
a
couple
of
flying
hairbrushes.
"When
Haylie
and
I
were
really
young
and
we
played
games
together
-
she'd
always
make
me
pretend
to
be
a
boy
because
I
had
short
hair.
I
hated
it!"