Fix wrong song name showing in party mode

PartyModes/PartyModeChallenge/CPartyModeChallenge.cs

@@ -475,12 +475,12 @@ namespace VocaluxeLib.PartyModes.Challenge
                     players[i].ProfileID = -1;
             }
 
-            CBase.Songs.AddPartySongSung(songID);
             CBase.Graphics.FadeTo(EScreens.ScreenSing);
         }
 
         public override void LeavingHighscore()
         {
+            CBase.Songs.AddPartySongSung(CBase.Game.GetSong(0).ID);
             _GameData.CurrentRoundNr++;
             CBase.Graphics.FadeTo(EScreens.ScreenPartyDummy);
         }