'The Hills' Stars Share Their Favorite MTV Movie Awards Moments

'I thought Katy Perry looked incredible,' Stephanie Pratt says.

UNIVERSAL CITY, California — As for the 2010 MTV Movie Awards, there were a bunch of standout moments for "The Hills" stars Lo Bosworth and Stephanie Pratt — Les Grossman's dance-off with Jennifer Lopez, Katy Perry's technicolor performance of "California Gurls," — but the biggest had to be when the West Coast MTV stars met the East Coast MTV stars.

" 'The Situation' situationed me," Bosworth dished backstage at the Gibson Amphitheatre. "Pauly D rocked my world, and Snooki was amazing."

The encounter also gave Bosworth the chance to make former "Hills" star Lauren Conrad's dreams come true. "My roommate Lauren [Conrad] wanted Pauly D to DJ at her birthday party, but Pauly D's manager said no," she recalled. "So I had him call Lauren, and it was awesome."

"It was a moment — I was glad to be there for that," Pratt added. In addition to the cast of "Jersey Shore," the girls also had nothing but praise for Jennifer Lopez, who returned to the stage as a singer and dancer alongside Les Grossman.

"I think [Les Grossman] was my favorite act all night and J.Lo — incredible," Pratt said of the mesmerizing performance. "I thought it was great. I thought Katy Perry looked incredible. I would say that the MTV Movie Awards, this year, killed it."

What was Bosworth's take? "J.Lo was my favorite, by the way," she said. "J.Lo — call me!"

Relive the wildest, funniest and most-jaw-dropping moments of the 2010 MTV Movie Awards, watch revealing red-carpet interviews and get exclusive movie clips after the show at MovieAwards.MTV.com.