Former Alaska Gov. Sarah Palin.

Former Alaska Gov. Sarah Palin.

Financial report; TV personality Melissa Rycroft; last-minute wedding planning.

Singer Dolly Parton; actress Kate Walsh ("Private Practice"); author Patricia Cornwell ("The Scarpetta Factor").

Nelly Furtado performs; food safety.

Brad Paisley and Carrie Underwood perform; food safety; author Stephen King ("Under the Dome").

Chef Rocco DiSpirito; diabetes; actress Emma Thompson; food safety.