Best's original name was Aticha Pongsilpipat. She entered entertainment business after winning a skin competition by Babi Mild. She then has many fashion shots with various woman and fashion magazines, TV commercials, music videos before moving to films and TV series. In her first film, The Love of Siam (Kak Haeng Siam, รักแห่งสยาม), she appeared as one of the four main actors promoted on the film's poster.[4] She starred as "Donut", girlfriend of "Tong", one of the two leading actors. The film won many Thailand film awards for movie showing in the year 2005.