private void fillHighScore(){
        scores = Database.DatabaseInstance.fillTopScores(singlePlayer);

       for(ScoreUser score : scores){
           usernameLabel = new JLabel(score.getUserName());
           usernameLabel.setForeground(Color.white);
           toReturnPanel.add(usernameLabel);
           scoreLabel = new JLabel("" + score.getScore());
           scoreLabel.setForeground(Color.white);
           toReturnPanel.add(scoreLabel);
        }
         if (scores.size() > 0 && scores.size() < 5) {
            for (int i = 0; i < (5-scores.size()); i++) {
                usernameLabel = new JLabel("-");
                toReturnPanel.add(usernameLabel);
                scoreLabel = new JLabel("-");
                toReturnPanel.add(scoreLabel);
            }
        }
    }