Thursday, May 3, 2018: M.I.A., David Usher and more

Today on q, with Tom Power: (1) pop star M.I.A. shares her thoughts on Stephen Loveridge's long-awaited documentary portrait of her; (2) Canadian musician David Usher talks about how he's working with Google to figure out if machines can help write song lyrics using artificial intelligence; (3) TV comedy writer Steve Young discusses his new documentary about the secret Broadway-style musicals that companies like Ford and McDonald's commissioned for private viewings.