The Zac Brown Band will make its first appearance at the Houston Livestock Show and Rodeo on March 17. In addition, Sugarland will make its third appearance at the rodeo on March 3, while teen star Selena Gomez is scheduled for March 6. Brad Paisley returns for his fourth consecutive year -- and sixth appearance overall -- on March 19. The Houston Livestock Show and Rodeo will take place March 1-20. The complete entertainment lineup will be revealed in January.