A hair styling tool 20 includes a body 22, a cylinder 24 extending from the body, the cylinder rotatable relative to the body, a motor 39 for rotating the cylinder, a heater 1324 to heat the cylinder, and a styling arm pivotally attached to the body. The hair styling tool may have a generally clam shell configuration, wherein the styling arm 151 is movable between an open position in which the styling arm is distant the cylinder and a closed position in which the styling arm is proximate to the cylinder, such as contacting the cylinder. The styling arm may also include a brush head 26 with fixed or retractable bristles and/or a smoothing plate 108.