For GrooveMobile after you search for your song, click on it. After you click the song a box should appear on the right side of it. Next swipe you finger from the left side of your screen to the right. this will take you to another screen which should have your song listed at the top. click on it there & you should hear your song after a few seconds. If not, make sure you have the latest version. Let me know if this works for you