Shakira performs; boosting immunity.

Former Alaska Gov. Sarah Palin; actress Jaclyn Smith; activist Chaz Bono; relationships.

Former Alaska Gov. Sarah Palin; Kris Allen performs; actor Viggo Mortensen ("The Road").

Norah Jones performs; chef Jamie Oliver; workplace issues; chef Sandra Lee ("Semi-Homemade Money Saving Slow Cooking").

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").