Celebrity Jamie Lynn Spears Engaged to Jamie Watson "He did good," the 21-year-old singer and actress says of the sparkler her new fiancé chose By Sarah Michaud Sarah Michaud Instagram Sarah Michaud is the senior news editor of PEOPLE's music vertical. People Editorial Guidelines Published on March 3, 2013 10:00 AM Share Tweet Pin Email Trending Videos Photo: Courtesy of Jamie Lynn Spears She said yes! Jamie Lynn Spears is engaged to Jamie Watson, she announced Saturday evening via Instagram. “Guesssss what??????” Spears wrote, sharing a happy photo of the couple, left hand raised to show off the ring. “#Hedidgood.” The singer and actress, 21, has been dating Watson, 30, on and off for three years, he told the New York Post in January. Spears, the little sister of pop star Britney Spears – who recently ended her own engagement – was previously set to wed Casey Aldridge, the father of her 4½-year-old daughter Maddie. She and her little girl split their time between Nashville, Tenn. and Kentwood, La. Britney Says She’s ‘So Excited and Happy’ for Jamie Lynn’s Engagement “Maddie goes to school in the Kentwood area, so Jamie Lynn tries to be in Louisiana most of the time,” Watson tells the Post.