Full video previews have been uploaded for all of our RBN1 songs. I've added the links to the OP; click the song's name under "Currently Available Xbox Songs" and it'll take you to the video. Go check them out; you may discover something you missed the first time around.
Each video's description contains tiers, purchase links for Xbox Live Marketplace and links to where you can buy the album and support the artist. I've also included a fun fact for each song.
As expected, that didn't take long to do at all. I'll start working on RBN2 previews, and maybe I'll be able to reveal a new song or two.