The Late Late Show Went Next Level

James' father sat in with Reggie and the band.

1. James' father sat in with Reggie and the band.

For his last day in Los Angeles, our host's dad joined the band.

Photo: Sonja Flemming/CBS ©2015 CBS Broadcasting, Inc. All Rights Reserved
Sax solo!

2. Sax solo!

He can really blow!

Photo: Sonja Flemming/CBS ©2015 CBS Broadcasting, Inc. All Rights Reserved
Katie Couric pulled off the most brilliant prank.

3. Katie Couric pulled off the most brilliant prank.

She had a stunt double fall down the stairs during her entrance. Psych! 

Photo: Sonja Flemming/CBS ©2015 CBS Broadcasting, Inc. All Rights Reserved
Jeremy Piven's drum skills might be deadly.

4. Jeremy Piven's drum skills might be deadly.

Piven rocks the drums at his house. He explained how it might've annoyed a neighbor into the grave. 

Photo: Sonja Flemming/CBS ©2015 CBS Broadcasting, Inc. All Rights Reserved
Kate Couric destroyed Bizarro Katie Couric.

5. Kate Couric destroyed Bizarro Katie Couric.

Did you ever imagine you'd see this sweet TV host break a chair over her doppelgänger.

Photo: Sonja Flemming/CBS ©2015 CBS Broadcasting, Inc. All Rights Reserved