The chart-topping "Beer For My Horses" duo Toby Keith and Willie Nelson will be entertaining at the Superbowl XXXVIII pre-game show on Sunday, Feb. 1, at Reliant Stadium in Houston, Texas. Toby and Willie will join Aerosmith for the show, entitled "Welcome To Houston - The Spirit of Texas." But they're not the only country stars who'll be jamming that weekend in Houston. Tim McGraw will perform at the Bud Bowl 2004 on Jan. 31; and BR549, Deana Carter and Trick Pony will be partying at the Houston Superbash, which runs Wed. Jan. 28 through Sun. Feb. 1.