Nia Vardalos, best known for My Big Fat Greek Wedding, stopped by to talk about adoption and her new book Instant Mom.

George and Nia pose after her interview in studio 43

George points Nia in the direction of a surprise...

Nia just happened to drop by on her birthday, so of course there was cake for the Instant Mom author

Nia just happened to drop by on her birthday, so of course there was cake for the Instant Mom author

Brothers Nathan and Caleb Followill make George laugh

Caleb and Nathan Followill chat with George after their interivew in studio 43

Gavin Crawford, Elvira Kurt and Michael Landsberg duke it out with George