Reba McEntire dressed up as a pizza delivery woman to throw Dolly Parton a surprise birthday party — planned quietly for three months, so well hidden that Dolly thought she was being pranked! No fanfare, no grandeur — just a cozy garden party full of love and laughter. Reba personally called friends, arranged a rhinestone-studded cake shaped like a guitar, and even disguised herself as a food delivery woman to “break into” Dolly’s Tennessee estate. When Dolly opened the door, she quipped: “Honey, I didn’t order a pizza! Who are you?” — until Reba tipped her hat and sang “Happy Birthday” on her guitar. Only 17 close friends attended — all “big names” — and Reba’s gift, a never-before-heard duet she’d written decades ago, brought Dolly to tears.