Smackdown: Actor Albums

If actor Joaquin Phoenix makes good on his promise to pursue a rap career, he would join Scarlett Johansson, Kevin Bacon and other Hollywood celebrities who have dabbled in music. But "actor albums" often meet with mixed success and skepticism. In another Soundcheck Smackdown, we debate whether "actor albums" get a fair shake. Plus: violinist and author Daniel Hope talks about how war has influenced music over the centuries, from Beethoven to Stravinsky and beyond.