For the first time, the U.S. is not in the Top 20 of Happiest Countries. What's to blame, and how do we become happier? New York Times bestselling author and happiness expert Arthur C. Brooks joins us with what he says is the secret to getting happy. Then, doctors told Dannie De Novo she would never be happy — how she ignored what they said and how she can help you too. "The Dress Doctor" and fashion psychologist Dawnn Karen explores the correlation between what we wear and how we feel, and The Happiness Club brings joy to the Tam Fam stage with a performance of "Shake That Stress Off." Finally, stars of the TLC hit show "One Thousand Pound Best Friends" share their weight loss and happiness journey with the Tam Fam and how it has affected their relationships with each other.

These storytellers had pivotal, life-altering experiences with the subjects of their reports. ABC News senior national correspondent Terry Moran joins the Tam Fam to discuss the late-breaking details in the Menendez Brothers case and the recent, shocking twists and turns, and USC journalism professor and reporter Alan Abramson urges the public to set aside emotions and focus on the facts of the notorious case. Former Los Angeles prosecutor, best known for leading the case against O.J. Simpson, Marcia Clark hosts "The First 48" podcast, where she reviews the facts, speaks with experts, and uses her own expertise to shed new light on cases. Karen and Diane VanderMolen, cousins of the Menendez brothers, share their thoughts as family members on the notorious case. Chicago ABC News anchor Samantha Chatman joins the Tam Fam with Dr. Brandon Baird, who performed a risky surgery to preserve her vocal cords after what she thought was a career-ending cancer diagnosis.