diff --git a/includes/class-tni-core-custom-fields.php b/includes/class-tni-core-custom-fields.php
index 27f92ce..b894998 100644
--- a/includes/class-tni-core-custom-fields.php
+++ b/includes/class-tni-core-custom-fields.php
@@ -121,6 +121,22 @@ public function register_field_groups() {
     				'toolbar' => 'full',
     				'media_upload' => 'yes',
     			),
+          array (
+      			'key' => 'field_audio_url',
+      			'label' => __( 'Audio URL', 'tni-core' ),
+      			'name' => 'audio_url',
+      			'type' => 'url',
+      			'instructions' => '',
+      			'required' => 0,
+      			'conditional_logic' => 0,
+      			'wrapper' => array (
+      				'width' => '',
+      				'class' => '',
+      				'id' => '',
+      			),
+      			'default_value' => '',
+      			'placeholder' => '',
+      		),
     		),
     		'location' => array (
     			array (
diff --git a/readme.txt b/readme.txt
index fe3559b..fce6568 100644
--- a/readme.txt
+++ b/readme.txt
@@ -2,8 +2,8 @@
 Contributors: misfist
 Tags: custom
 Requires at least: 4.7
-Tested up to: 4.7.5
-Version: 1.2.6
+Tested up to: 4.8
+Version: 1.2.7
 License: GPLv2 or later
 License URI: http://www.gnu.org/licenses/gpl-2.0.html
 
@@ -22,6 +22,10 @@ This section describes how to install the plugin and get it working.
 
 == Changelog ==
 
+= 1.2.7 June 22, 2017 =
+* #29 Added `audio_url` custom field.
+  * To access value: `get_post_meta( post->ID, 'audio_url', true );`
+
 = 1.2.6 June 21, 2017 =
 * Show scheduled (future) single posts to authenticated users
 
diff --git a/tni-core-functionality.php b/tni-core-functionality.php
index 8967553..0cc2dc5 100644
--- a/tni-core-functionality.php
+++ b/tni-core-functionality.php
@@ -10,7 +10,7 @@
  * Text Domain:     tni-core
  * Domain Path:     /languages
  *
- * Version:         1.2.6
+ * Version:         1.2.7
  *
  * @package         Tni_Core_Functionality
  */
@@ -52,7 +52,7 @@
  * @return object Tni_Core
  */
 function Tni_Core() {
-	$instance = Tni_Core::instance( __FILE__, 'l.2.6' );
+	$instance = Tni_Core::instance( __FILE__, 'l.2.7' );
 
 	return $instance;
 }