Krystal Keith recently welcomed a special guest to her show in Las Vegas: dad Toby Keith. The two performed a duet of her song "Cabo San Lucas" off her debut album Whiskey & Lace. Dad Toby dressed super-casually for the cameo, sporting a zip-up track jacket and swapping out his usual cowboy hat for a baseball cap. Video footage of the December 12 performance just surfaced on YouTube yesterday. Krystal's show took place at the Revolver Saloon inside Santa Fe Station as part of its "Back in the Saddle" concert series.