1) Not in the game, go to Your Documents and go to EA Games. 2) Open up your music files you want to play on the game using a second docment window 3) Go to Music and choose the correct genre for your songs 4) Drag and drop the MP3's and they should play on your Sims' stero. [Note: I haven't played The Sims 3 yet so this is knowledge with The Sims 2] [Note: Hold Control when you drag and drop so you don't lose your Mp3]