This week's app review: Rhino Musical Aptitude Test vs. Justin Bieber Music Lyrics

appealing appalling

With thousands of new mobile applications entering the market every week, it's becoming increasingly difficult for consumers to identify the apps that deliver the best--and the worst--that smartphones have to offer. Appealing/Appalling is a weekly feature that separates the wheat from the chaff. This week: A test of the pop music trivia all serious fans should know--and lyrics from a teen phenomenon most of us would like to forget.