We know you love music. And since you visit Billboard.com, we know you're interested in digging for info on your favorite bands, rappers, and singers from David Archuleta and Justin Bieber to The XX and Zac Brown Band. To entertain all you fans out there, we created an addictive trivia game on Facebook, "The Billboard Music Challenge." Find out how well you know the charts, famous album covers, and musician milestones. We predict you won't be able to play just once. Visit us on Facebook to play.