The Late Show with Stephen Colbert S10 E127 William Shatner & Neil deGrasse Tyson

First Drafts: Father's Day Cards, with Stephen's wife, Evie. William Shatner and Neil deGrasse Tyson discusses their live tour, 'Rocking: The Universe is Absurd'. The Doobie Brothers perform "Learn to Let Go" from their album 'Walk This Road'.