Musical Chers and Showbiz Dreams on The Late Late Show

Posing for a curtain call at the beginning.

1. Posing for a curtain call at the beginning.

Just because James hasn't even started interviewing his guests yet, that doesn't mean they can't do a quick curtain call.

Photo: Sonja Flemming/CBS ©2015 CBS Broadcasting, Inc. All Rights Reserved
Reggie Watts strikes his showbiz pose.

2. Reggie Watts strikes his showbiz pose.

Our bandleader knows all the right moves.

Photo: Sonja Flemming/CBS ©2015 CBS Broadcasting, Inc. All Rights Reserved
Megan Mullally serenades the sickly.

3. Megan Mullally serenades the sickly.

After Tig Notaro told the story of how Megan Mullally would come sing to her in the hospital, the former Will & Grace star displays her vocal talents while the others fake being sick.

Photo: Sonja Flemming/CBS ©2015 CBS Broadcasting, Inc. All Rights Reserved
Meet the six Chers.

4. Meet the six Chers.

In preparation for playing Musical Chers, James and his guests dress up as Cher and are joined by two Cher impersonators.

Photo: Sonja Flemming/CBS ©2015 CBS Broadcasting, Inc. All Rights Reserved
Let the game begin!

5. Let the game begin!

Megan Mullally is the first one out of Musical Chers.

Photo: Sonja Flemming/CBS ©2015 CBS Broadcasting, Inc. All Rights Reserved
Jamming off into the night.

6. Jamming off into the night.

To close the show, all the Chers got on stage with Reggie and the band.

Photo: Sonja Flemming/CBS ©2015 CBS Broadcasting, Inc. All Rights Reserved
Have you seen choreography in a crosswalk before?

7. Have you seen choreography in a crosswalk before?

If so, we bet it wasn't this amazing.

Photo: Sonja Flemming/CBS ©2015 CBS Broadcasting, Inc. All Rights Reserved
It's Grease Lightning!

8. It's Grease Lightning!

Getting ready to soap up Grease Lightning.

Photo: Sonja Flemming/CBS ©2015 CBS Broadcasting, Inc. All Rights Reserved
Hopefully that unsuspecting driver needed a carwash anyway.

9. Hopefully that unsuspecting driver needed a carwash anyway.

Sometimes you have to shoo a homeless man with a squeegee away from your windshield. This guy had to deal with a whole theater company.

Photo: Sonja Flemming/CBS ©2015 CBS Broadcasting, Inc. All Rights Reserved
The big finale of Crosswalk The Musical's performance of Grease.

10. The big finale of Crosswalk The Musical's performance of Grease.

Go big or go home.

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