Watch Incoming Love Letters Star Carol Burnett Reveal Her Nail-Biting Secret to Stifling a Laugh on Stage

Beginning October 11, Carol Burnett will have a chance to show off her impeccable comedic timing once again in Love Letters. But A.R. Gurney’s play isn’t all laughs. And as we all know, in the past she's had a habit of breaking character. On The Tonight Show on October 6, the comedy icon shared with Jimmy Fallon the secret she's picked up to keep from laughing: just bite your finger…hard. So look out for that at the Brooks Atkinson Theatre. Later, Fallon gushed about the many outfits Burnett wore on her TV series, including the infamous Gone With The Wind sendup. “There was nobody like Bob [Mackie],” Burnett says of the costumer who designed up to 70 costumes a week for her show. Take a look at the interview clips below!