TODAY 3rd Hour: Prince Harry takes the stand. Melanoma vaccine trial shows promise. The Upside: Celebrating abuelas. Melissa Joan Hart & Soleil Moon Frye on TODAY.

<p>Prince Harry becomes the first royal family member to testify in court in more than 100 years. Also, Dr. Natalie Azar breaks down everything you need to know about the new Melanoma vaccine. Plus, The Upside: a grand tribute to “Abuelas.” And, Melissa Joan Hart and Soleil Moon Frye in studio 1A to talk about their new short documentary-style film called “I Never Thought To Ask: A Mom’s Quest For Answers.”</p>