diff --git a/src/gibstick/bukkit/discosheep/DiscoSheepCommandExecutor.java b/src/gibstick/bukkit/discosheep/DiscoSheepCommandExecutor.java
index d56a8b1..fca8241 100644
--- a/src/gibstick/bukkit/discosheep/DiscoSheepCommandExecutor.java
+++ b/src/gibstick/bukkit/discosheep/DiscoSheepCommandExecutor.java
@@ -1,5 +1,6 @@
 package gibstick.bukkit.discosheep;
 
+import org.bukkit.Bukkit;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandSender;
 import org.bukkit.command.CommandExecutor;
@@ -15,8 +16,22 @@ public class DiscoSheepCommandExecutor implements CommandExecutor {
 
 	@Override
 	public boolean onCommand(CommandSender sender, Command cmd, String label, String[] args) {
-		if (sender instanceof Player) {
-			parent.startParty((Player)sender);
+		if (args.length == 1) {
+			if ("all".equals(args[0])) {
+				for (Player player : Bukkit.getServer().getOnlinePlayers()) {
+					parent.startParty(player);
+				}
+			}
+			else if ("stop".equals(args[0])) {
+				parent.stopAllParties();
+			} else {
+				sender.sendMessage("Invalid argument.");
+				return true;
+			}
+		} else {
+			if (sender instanceof Player) {
+				parent.startParty((Player) sender);
+			}
 		}
 		return true;
 	}