George Clooney reveals the hilarious way his Halloween has changed with his twins (Exclusive)

George Clooney celebrates Halloween a little differently since he became a father of twins. The famous 57-year-old actor opened at ET at Casamigos' second Halloween party at the Aria Resort & Casino in Las Vegas on Sunday night.

Clooney missed Casamigos' first night of entertainment in Los Angeles this weekend because he chose to stay home with his one year old twins, Ella and Alexander. His business partner, Rande Gerber, and his wife, Cindy Crawford, however, attended the party and disguised themselves as rock stars with their two children, Kaia and Presley Gerber.

"Last night, they were disguised as rock stars and me, cleaning a baby diaper," joked Clooney. "It was a fantastic costume Oh, so much fun, you can imagine the pleasure I had last night."

For the second night of celebration, Clooney and Gerber dressed as pilots with the flight attendant Crawford by their side.

The 52-year-old model said about the costume change saying, "You do not want to do the same thing for two nights in a row. Last night we had a problem with our kids and tonight we are flying to Vegas, and that was, I guess, the flight as a whole. "

The guys joked about drinking a lot of their tequila for the party, with Gerber, 56, joking: "I have a very good liver, you?"

Clooney replied, "I have a new one next week."

While the flight crew costumes were quite epic, the Oscar winner admitted that he had worn some not-so-good Halloween outfits over the years.

"Oh, I made terrible costumes." I went like a box of milk with the face coming out the side that said "Have you seen this child recently? "It was bad," he confessed some terrible, but that was 30 years ago. I can not be held responsible for this. "

For more fun, watch the clip below: