"GMA3" celebrates "Nightline"'s 45th anniversary with co-anchor Byron Pitts and correspondent Ashan Singh; ABC News correspondent Alexis Christoforous sits down with Glossier founder and executive chairwoman Emily Weiss, CEO Kyle Leahy and CMO Kleo Mack; SiriusXM host and ABC News contributor Mike Muse shares the latest headlines from Hollywood.

Daytime TV host Tamron Hall talks about her new children's book ("Harlem Honey: The Adventures of a Curious Kid"); Studio Auctions co-founder Brad Teplitsky previews an upcoming auction that features props from the "Star Wars" franchise; Deals & Steals with ABC e-commerce editor Tory Johnson.