diff --git a/karma/ircplugin.py b/karma/ircplugin.py
index 1469c4e..7a97a35 100644
--- a/karma/ircplugin.py
+++ b/karma/ircplugin.py
@@ -6,6 +6,7 @@ import re
 import irc.client
 
 from django.conf import settings
+from django.db.models import Count, Sum
 
 from ircbot.lib import Plugin
 from karma.models import KarmaKey, KarmaLogEntry
@@ -23,6 +24,9 @@ class Karma(Plugin):
         self.connection.add_global_handler('pubmsg', self.handle_chatter, -20)
         self.connection.add_global_handler('privmsg', self.handle_chatter, -20)
 
+        self.connection.reactor.add_global_regex_handler(['pubmsg', 'privmsg'],
+                                                         (r'^!karma\s+keyreport\s+(.*)'),
+                                                         self.handle_keyreport, -20)
         self.connection.reactor.add_global_regex_handler(['pubmsg', 'privmsg'],
                                                          r'^!karma\s+rank\s+(.*)$',
                                                          self.handle_rank, -20)
@@ -42,6 +46,7 @@ class Karma(Plugin):
         self.connection.remove_global_handler('pubmsg', self.handle_chatter)
         self.connection.remove_global_handler('privmsg', self.handle_chatter)
 
+        self.connection.reactor.remove_global_regex_handler(['pubmsg', 'privmsg'], self.handle_keyreport)
         self.connection.reactor.remove_global_regex_handler(['pubmsg', 'privmsg'], self.handle_rank)
         self.connection.reactor.remove_global_regex_handler(['pubmsg', 'privmsg'], self.handle_report)
         self.connection.reactor.remove_global_regex_handler(['pubmsg', 'privmsg'], self.handle_stats)
@@ -102,6 +107,19 @@ class Karma(Plugin):
         except KarmaKey.DoesNotExist:
             return self.bot.reply(event, "i have not seen any karma for {0:s}".format(match.group(1)))
 
+    def handle_keyreport(self, connection, event, match):
+        """Provide report on a karma key."""
+        key = match.group(1).lower().rstrip()
+        try:
+            karma_key = KarmaKey.objects.get(key=key)
+            karmaers = KarmaLogEntry.objects.filter(key=karma_key)
+            karmaers = karmaers.values('nickmask').annotate(Sum('delta')).annotate(Count('delta')).order_by('-delta__count')
+            karmaers_list =  [f"{irc.client.NickMask(x['nickmask']).nick} ({x['delta__count']}, {'+' if x['delta__sum'] >= 0 else ''}{x['delta__sum']})" for x in karmaers]
+            karmaers_list_str = ", ".join(karmaers_list[:10])
+            return self.bot.reply(event, f"most opinionated on {key}: {karmaers_list_str}")
+        except KarmaKey.DoesNotExist:
+            return self.bot.reply(event, "i have not seen any karma for {0:s}".format(match.group(1)))
+
     def handle_report(self, connection, event, match):
         """Provide some karma reports."""