Jessica Simpson has been tapped to support Rascal Flatts on the winter leg of the country group's ongoing Bob That Head Tour.

Simpson, who will be on the road supporting her new country album "Do You Know" (Columbia Nashville), joins the trek for approximately 25 shows in mid-January. Further details about the concerts will be announced later this fall.

Simpson has been performing at fairs and festivals to promote "Do You know," which debuted last month at No. 1 on the Top Country Albums chart. The set has moved 104,000 copies in the United States, according to Nielsen SoundScan.