In a little over four months, the annual Houston Livestock Show and Rodeo will overtake the city’s Reliant Park for a month of rodeo events and blow-out concerts at Reliant Stadium. This week, event organizers revealed four headline acts for the 2011 season, which runs from March 1 through March 20.

Country band Sugarland will take center stage on March 3, while Disney Channel starlet Selena Gomez is slated for a March 6 performance. Booked closer to RodeoHouston’s close are the Zac Brown Band, playing on March 17, and Brad Paisley, inked for a March 19 performance.

Acts for the remaining 16 dates on RodeoHouston’s calendar have not been announced. The complete lineup will be revealed January 10, just prior to the start of individual ticket sales on January 15. At the moment, only season and mini-season ticket packages are available to the public.

Season tickets provide access to each day of the rodeo and all RodeoHouston concerts. Prices for a single season ticket range from $336 for upper level seating, up to $6,000 for a front-row chute seat, located directly behind the rodeo’s bucking chutes.

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Mini-season tickets are split into two options, each offering access to a different selection of nine RodeoHouston dates. “Option A” tickets are priced at $154 for upper level seats or $189 for loge level seats; “Option B” tickets are $146 for upper level and $189 for loge level seating.

Single-day, individual tickets are split into six pricing and seating levels: $18 (upper level); $21 (loge level); $24-25 (field level); $30, $33 or $36 (club level); $86 (action); $200 or $300 (chute). Details about ticketing and complimentary services included in the ticket price are available on the rodeo’s official Web site.

While the lineup is still in flux, RodeoHouston’s traditional celebration days have already been set on the schedule. “Black Heritage Day” will be March 4 and “Go Tejano Day” is set for March 13. This year also sees the return of Wednesday “Value Days,” during which upper level seats are just $10 apiece.

Earlier this month, University of Houston economist Barton Smith, Ph.D., released an economic study on the Houston Livestock Show and Rodeo’s impact on the surrounding region. According to that report, the 2010 season brought nearly $144 million from outside regions to the local economy and increased the gross regional product by more than $320 million.

The Houston Rodeo, founded in 1932, set an all-time attendance record in 2010, with more than 2.14 million general attendees. That was a significant increase over 2009 figures, which put general attendance over the 1.89 million mark.