Part I: Carrie Ann Inaba predicts how certain celebs would do on 'Dancing with the Stars.'
Part II: Carrie Ann Inaba reveals if she has a problem with Kellie Pickler and dishes on her chances to win 'Dancing with the Stars.'
Part II: Alyson Hannigan reveals her favorite and least favorite 'Housewives' and Zachary Quinto picks the creepiest scene from 'American Horror Story.'
Part I: Zachary Quinto tells all on 'Plead the Fifth' and Alyson Hannigan dishes on who she keeps in touch with from 'Buffy.'
Alyson Hannigan spills the beans on all things 'Buffy the Vampire Slayer' on 'Plead the Fifth.'
Zachary Quinto and Alyson Hannigan guess whether the fan portraits are 'Sci Fi or Oh My!'
Alyson Hannigan teaches Andy Cohen how to sign an autograph with his foot.
Part II: Nick Lachey sounds off on Joe Simpson and 98 Degrees dish on their favorite song.
The guys from 98 Degrees throw some shade at their rival boy bands.
Sweet Brown delivers a very special Mazel of the Day to Cleveland hero Charles Ramsey.
The guys from 98 Degrees teach Andy how to get sexy for the camera.
Nick Lachey dishes on when he last saw ex-wife Jessica Simpson.
Part I: 98 Degrees talk about their new album and Sweet Brown tries to seduce the Lachey brothers.
Part I: Dr. Simone reveals a secret about Dr. Jackie and Dr. Jackie dishes on the infamous party.
Dr. Jackie & Dr. Simone dish on their friendship, camel toe, and HPV.