Barbara Kooyman (also known as by her stage name Barbara K and formerly Barbara K. MacDonald) (born October 4, 1958 in Wausau, Wisconsin) is an American singer-songwriter based in Austin, Texas. In the 1980s, she, her then-husband Pat MacDonald, and a beat box formed the recording act Timbuk3 whose 1986 signature song was "The Future's So Bright, I Gotta Wear Shades". The duo did road work with Bob Dylan, Sting, and Jackson Browne.