diff --git a/common/locales/en/groups.json b/common/locales/en/groups.json
index ef40858a8d..1055e6b428 100644
--- a/common/locales/en/groups.json
+++ b/common/locales/en/groups.json
@@ -30,6 +30,9 @@
     "invite": "Invite",
     "leave": "Leave",
     "invitedTo": "Invited to <%= name %>",
+    "invitedToNewParty": "You were invited to join a party! Do you want to leave this party and join <%= partyName %>?",
+    "joinNewParty": "Join New Party",
+    "declineInvitation": "Decline Invitation",
     "newMsg": "New message in \"<%= name %>\"",
     "chat": "Chat",
     "sendChat": "Send Chat",
diff --git a/test/spec/controllers/partyCtrlSpec.js b/test/spec/controllers/partyCtrlSpec.js
index edb8c8dfba..4a08689bc3 100644
--- a/test/spec/controllers/partyCtrlSpec.js
+++ b/test/spec/controllers/partyCtrlSpec.js
@@ -172,4 +172,42 @@ describe("Party Controller", function() {
       expect(rootScope.$state.go).to.be.calledWith('options.inventory.quests');
     });
   });
+
+  describe('#leaveOldPartyAndJoinNewParty', function() {
+    beforeEach(function() {
+      sandbox.stub(scope, 'join');
+      sandbox.stub(groups.Group, 'leave').yields();
+      sandbox.stub(groups, 'party').returns({
+        _id: 'old-party'
+      });
+      sandbox.stub(window, 'confirm').returns(true);
+    });
+
+    it('does nothing if user declines confirmation', function() {
+      window.confirm.returns(false);
+      scope.leaveOldPartyAndJoinNewParty('some-id', 'some-name');
+
+      expect(groups.Group.leave).to.not.be.called;
+    })
+
+    it('leaves user\'s current party', function() {
+      scope.leaveOldPartyAndJoinNewParty('some-id', 'some-name');
+
+      expect(groups.Group.leave).to.be.calledOnce;
+      expect(groups.Group.leave).to.be.calledWith({
+        gid: 'old-party',
+        keep: false
+      });
+    });
+
+    it('joins the new party', function() {
+      scope.leaveOldPartyAndJoinNewParty('some-id', 'some-name');
+
+      expect(scope.join).to.be.calledOnce;
+      expect(scope.join).to.be.calledWith({
+        id: 'some-id',
+        name: 'some-name'
+      });
+    });
+  });
 });
diff --git a/website/public/js/controllers/partyCtrl.js b/website/public/js/controllers/partyCtrl.js
index ca179a5c71..d288c0a57c 100644
--- a/website/public/js/controllers/partyCtrl.js
+++ b/website/public/js/controllers/partyCtrl.js
@@ -88,8 +88,15 @@ habitrpg.controller("PartyCtrl", ['$rootScope','$scope','Groups','Chat','User','
         }
       };
 
+      $scope.leaveOldPartyAndJoinNewParty = function(newPartyId, newPartyName) {
+        if (confirm('Are you sure you want to delete your party and join ' + newPartyName + '?')) {
+          Groups.Group.leave({gid: Groups.party()._id, keep:false}, undefined, function() {
+            $scope.join({ id: newPartyId, name: newPartyName });
+          });
+        }
+      }
+
       $scope.reject = function(){
-        //User.user.invitations.party = undefined;
         User.set({'invitations.party':{}});
       }
 
diff --git a/website/src/controllers/groups.js b/website/src/controllers/groups.js
index 19e0409ed1..8443a905b8 100644
--- a/website/src/controllers/groups.js
+++ b/website/src/controllers/groups.js
@@ -577,8 +577,9 @@ var inviteByUUIDs = function(uuids, group, req, res, next){
           return cb({code:400,err:"User already pending invitation."});
         Group.find({type:'party', members:{$in:[uuid]}}, function(err, groups){
           if (err) return cb(err);
-          if (!_.isEmpty(groups))
-            return cb({code:400,err:"User already in a party."})
+          if (!_.isEmpty(groups) && groups[0].members.length > 1) {
+            return cb({code:400, err:"User already in a party."})
+          }
           sendInvite();
         });
       }
diff --git a/website/views/options/social/leave-party-and-join-another.jade b/website/views/options/social/leave-party-and-join-another.jade
new file mode 100644
index 0000000000..3a0ec1d8c4
--- /dev/null
+++ b/website/views/options/social/leave-party-and-join-another.jade
@@ -0,0 +1,8 @@
+- var newParty = 'User.user.invitations.party'
+.containter-fulid(ng-if='#{newParty}.id && party._id')
+  .row.text-center
+    .col-sm-6.col-sm-offset-3.alert.alert-warning
+      p {{::env.t('invitedToNewParty', { partyName: #{newParty}.name })}}
+      p
+        button.btn.btn-success(ng-click='leaveOldPartyAndJoinNewParty(#{newParty}.id, #{newParty}.name)')=env.t('joinNewParty')
+        button.btn.btn-default(ng-click='reject()')=env.t('declineInvitation')
diff --git a/website/views/options/social/party.jade b/website/views/options/social/party.jade
index ded8fff16f..f7580f1deb 100644
--- a/website/views/options/social/party.jade
+++ b/website/views/options/social/party.jade
@@ -2,6 +2,7 @@ include ../../shared/avatar/generated_avatar
 
 script(type='text/ng-template', id='partials/options.social.party.html')
   div(ng-if='group._id')
+    include ./leave-party-and-join-another
     include ./group
   div(ng-if='!group._id')
     div(ng-show='user.invitations.party.id').container-fluid