A wireless subscriber is able to purchase music or other content from an on-line content provider. The subscriber sends a Short Message Service (SMS) message to an on-line content server indicating a desire to purchase content currently playing on a specified radio station. The on-line content server validates that the end user has a valid account. The on-line content server then queries the specified radio station web server to identify the specific content (e.g., title and artist of a current song). The on-line content server formats a SMS message to the wireless subscriber, which contains the title of the song and the artist and identifies various purchase options. The subscriber responds with an SMS message that confirms a particular purchase option and the requested content is downloaded to the subscriber's PC or wireless communication device.