Kelsey Grammer, Diane Sawyer, Kerry Washington, Omar Sy, Josh Groban

Actor and film producer Kelsey Grammer talks about his new book "Karen: A Brother Remembers" with Diane Sawyer; actors Kerry Washington and Omar Sy ("Shadow Force"); singer Josh Groban performs and talks about his new greatest hits album; GMA5k: The Right Stuff series with "GMA" lifestyle contributor Lori Bergamotto, featuring running sneakers.