diff --git a/HelloWorld/android/jni/Android.mk b/HelloWorld/android/jni/Android.mk
index e0d03ee0c230..bdef5abe0617 100644
--- a/HelloWorld/android/jni/Android.mk
+++ b/HelloWorld/android/jni/Android.mk
@@ -3,6 +3,7 @@ include $(CLEAR_VARS)
 
 subdirs := $(addprefix $(LOCAL_PATH)/../../../,$(addsuffix /Android.mk, \
            cocos2dx \
+           CocosDenshion/android \
 	))
 subdirs += $(LOCAL_PATH)/helloworld/Android.mk
 
diff --git a/HelloWorld/android/jni/helloworld/Android.mk b/HelloWorld/android/jni/helloworld/Android.mk
index 738111fb7d59..647f361e36e7 100644
--- a/HelloWorld/android/jni/helloworld/Android.mk
+++ b/HelloWorld/android/jni/helloworld/Android.mk
@@ -11,12 +11,12 @@ LOCAL_C_INCLUDES := $(LOCAL_PATH)/../../../../cocos2dx \
                     $(LOCAL_PATH)/../../../../cocos2dx/include \
                     $(LOCAL_PATH)/../../.. 
                    
-LOCAL_LDLIBS := -L$(LOCAL_PATH)/../../libs/armeabi -lcocos2d -llog
+LOCAL_LDLIBS := -L$(LOCAL_PATH)/../../libs/armeabi -lcocos2d -llog -lcocosdenshion
 
 # it is used for ndk-r5    
 # because the new Windows toolchain doesn't support Cygwin's drive
 # mapping (i.e /cygdrive/c/ instead of C:/)  
 # LOCAL_LDLIBS := -L$(call host-path, $(LOCAL_PATH)/../../libs/armeabi) \
-#                -lcocos2d -llog
+#                -lcocos2d -llog -lcocosdenshion
             
 include $(BUILD_SHARED_LIBRARY)
\ No newline at end of file
diff --git a/HelloWorld/android/src/org/cocos2dx/application/ApplicationDemo.java b/HelloWorld/android/src/org/cocos2dx/application/ApplicationDemo.java
index 453ce3bba735..9289e7da35e1 100644
--- a/HelloWorld/android/src/org/cocos2dx/application/ApplicationDemo.java
+++ b/HelloWorld/android/src/org/cocos2dx/application/ApplicationDemo.java
@@ -34,6 +34,7 @@ protected void onResume() {
 	
      static {
     	 System.loadLibrary("cocos2d");
+    	 System.loadLibrary("cocosdenshion");
          System.loadLibrary("helloworld");
      }
 }
diff --git a/HelloWorld/android/src/org/cocos2dx/lib/Cocos2dxActivity.java b/HelloWorld/android/src/org/cocos2dx/lib/Cocos2dxActivity.java
index 4678ba44f5ea..0881b2a2f999 100644
--- a/HelloWorld/android/src/org/cocos2dx/lib/Cocos2dxActivity.java
+++ b/HelloWorld/android/src/org/cocos2dx/lib/Cocos2dxActivity.java
@@ -153,6 +153,9 @@ protected void onResume() {
     	if (accelerometerEnabled) {
     	    accelerometer.enable();
     	}
+    	
+    	// resume background music
+    	resumeBackgroundMusic();
     }
 
     @Override
@@ -161,6 +164,9 @@ protected void onPause() {
     	if (accelerometerEnabled) {
     	    accelerometer.disable();
     	}
+    	
+    	// pause background music
+    	pauseBackgroundMusic();
     }
 
     protected void setPackgeName(String packageName) {