Fort Worth Weekly Thursday April 22 The big names keep rolling in for Billy Bob’s 40th Anniversary Celebration. At 9pm today and Sunday, plus 10pm Fri-Sat, see Texas native Miranda Lambert at the World’s Largest Honkytonk (2520 Rodeo Plaza, 817-624-7117). Doors open at 6pm, and the house band opens the Honky Tonk Stage at 8pm every night. Friday April 23 itCon hits Panther Island Pavilion (395 Purcey St, 817-698-0700) 2pm-9pm today and 10am-6pm Saturday. This high-energy fitness expo features celebrity guests — including Danna Linn Bailey and Rob Bailey — competitions, fitness classes, and hundreds of vendors. Two-day passes are $30, and one-day passes are $20 at FitCon.com.