ET was behind the scenes as the six remaining celebs were rehearsing for this week's "Celebrity Circus"' death-defying stunts. The upcoming acts include Christopher Knight high above the crowd on the Bungee, Stacey Dash attempts the Spanish Web, Antonio Sabato Jr. climbs the Chinese Poles, Janet Evans flies on the Swinging Cradle/Trapeze, Rachel Hunter balances on the High Wire and Jason "Wee Man" Acuna is suspended from the Flying Straps.

"Celebrity Circus" airs tonight at 10 p.m. on NBC.