diff --git a/icecream/icecream.py b/icecream/icecream.py
index 7cc1c29..3d38c37 100644
--- a/icecream/icecream.py
+++ b/icecream/icecream.py
@@ -183,8 +183,8 @@ def unregister(cls):
 
 
 @singledispatch
-def argumentToString(obj):
-    s = DEFAULT_ARG_TO_STRING_FUNCTION(obj)
+def argumentToString(obj, **kwargs):
+    s = DEFAULT_ARG_TO_STRING_FUNCTION(obj, **kwargs)
     s = s.replace('\\n', '\n')  # Preserve string newlines in output.
     return s
 
@@ -205,7 +205,9 @@ def __init__(self, prefix=DEFAULT_PREFIX,
         self.argToStringFunction = argToStringFunction
         self.contextAbsPath = contextAbsPath
 
-    def __call__(self, *args):
+    def __call__(self, *args, **kwargs):
+        self.kwargs = kwargs
+
         if self.enabled:
             callFrame = inspect.currentframe().f_back
             self.outputFunction(self._format(callFrame, *args))
@@ -261,11 +263,11 @@ def _constructArgumentOutput(self, prefix, context, pairs):
         def argPrefix(arg):
             return '%s: ' % arg
 
-        pairs = [(arg, self.argToStringFunction(val)) for arg, val in pairs]
-        # For cleaner output, if <arg> is a literal, eg 3, "a string",
-        # b'bytes', etc, only output the value, not the argument and the
-        # value, because the argument and the value will be identical or
-        # nigh identical. Ex: with ic("hello"), just output
+        pairs = [(arg, self.argToStringFunction(val, **self.kwargs)) for arg, val in pairs]
+        # For cleaner output, if <arg> is a literal, eg 3, "string", b'bytes',
+        # etc, only output the value, not the argument and the value, as the
+        # argument and the value will be identical or nigh identical. Ex: with
+        # ic("hello"), just output
         #
         #   ic| 'hello',
         #