Kristen Chenoweth, the actress pictured here, is not a natural blonde (you can tell from her roots, which are beginning to grow in), but her hair color is gorgeous. If you don't want obvious roots, get balayage instead of foil highlights. They grow in more naturally. If you want to go completely blonde, it's typically a 2-stop process that involves bleaching color from hair and then adding color back in. Progress with caution and never try this at home. Also keep in mind that there will be extensive upkeep to going blonde.