$("#music_up").bind("click",showData());

$("#music_up").bind("click",showRe());

$("#music_up").bind("click",function(){

            showData();

            showRe();

        });

<script type="text/javascript">

$(document).ready(function(){

  $("button").bind({

    click:function(){$("p").slideToggle();},

    mouseover:function(){$("body").css("background-color","red");},

    mouseout:function(){$("body").css("background-color","#FFFFFF");}

  });

});

</script>

function showData(){

        alert('showData');

    }

    function showRe(){

        alert('showRe');

    }