In TV Tokyo's "Gluttonous King" contest held in the fall of 2005, open to both men and women, Sone qualified for the finals and beat out Miyuki Iwata, then considered the leading Japanese female competitive eater after the legendary (and currently inactive) Takako Akasaka, for sixth place by just 6 grams of bread.
In addition to her "Gluttonous King/Queen" competitions, Sone has made numerous other television appearances, most notably a weekly Wednesday morning contest with "The Giant" Nobuyuki Shirota, runner-up in Nathan's Hot Dog Eating Contest in 2004.
In a recent program, Gal Sone attempted in a single meal to exceed the 15,000 calories that it is claimed that Elvis Presley consumed every day near the end of his life.
On April 24, 2007, it was announced that Sone would form a singing group directed by Tsunku named Gyaruru with Nozomi Tsuji and Ami Tokito.
), was released on June 20, 2007 on Japanese independent label TN-mix through Pony Canyon.