No, You should not buy Feed My iPods. It's a scam! Plus, I don't think it's even around anymore (those sorts of scams come and go pretty quickly) Instead you should download mp3s for your iPod at a reputable site such as Amazon.com (most recommended due to their excellent prices and huge selection.)
I have no doubt that you will be able to find the music that you're looking for at Amazon.com's MP3 Store.
They've got all of the latest songs as well as all of the classics. CLICK HERE to get started now, it's easy to find what you want.