George Lopez on His ‘Twitter Rivalry’ with Lindsay Lohan

George Lopez stepped out for the grand unveiling of his wax-figure likeness at Madame Tussauds in Hollywood today, and the talk-show host got candid with ET about his "Twitter rivalry" with Lindsay Lohan -- and how they're set to square off on his show!

"It is the most polite Twitter rivalry you could ever have," George tells ET of his back-and-forth with Lindsay on Twitter after making a joke at her expense over a photo of her leaving a party with white powder on her shoes.

"I invited her to be on my show and to take it off Twitter," he continues, referring to her upcoming visit to "Lopez Tonight" on Tuesday. "I'm a huge supporter of her. I met her a couple of times. … She's been great to me and I've been great to her, so this isn't anything other than just somebody taking exception to something that I said -- that's not uncommon."