Fatburger chief executive Andy Wiederhorn donned a wig and fake mustache to become the next “Undercover Boss” in an episode of the television show scheduled to air Friday. RELATED • Moe's boosts exposure with 'Undercover Boss' • Checkers sees business benefits of 'Undercover Boss' appearance • Tilted Kilt president Ron Lynch details 'Undercover Boss' experience • Cinnabon president Kat Cole shares 'Undercover ...

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