1: Choose a song you want to get for free from your favorite singer like Taylor Swift or Justin Bieber for example. (I dont know what you kiddos listen to these days.XD)
2: Find ths song you want on YouTube and Copy the Video URL. For Computers right click on the video, for Phones hold your finger on the video for a couple of seconds. (This will not work on the YouTube App or it will not work on the 3DS.)
3: Go to http://www.listentoyoutube.com/ and paste your YouTube Video URL and then... BAM! Free Music! It sounds better when its free! The songs I got for free were "Turn Down For What" and "Sandstorm". Sometimes they dont appear on your phone instantly but they do on the computer.
Also make sure on your phone you place the .mp3 in your Downloads Folser and you might have to go in your File Manager to play the Music but I just play it on my Music Player App on my phone.
Tell me what you think and please comment what you want to get next for free!