Wow. Apple's iTunes Store now has a Facebook Fan Page. During today's It's only rock and roll, but we like it special music event, Apple announced iTunes 9 and said it allowed users to share via Facebook. Apparently you can share some love for iTunes right back.
And if you do, you can get 20 free songs by indie artists. The process sounds hecka convoluted, but TUAW takes you through it admirably.
Let us know if you become a fan, and get your music!