Spencer Pratt is stirring up trouble again after his 'Hills' co-star Audrina Patridge talked about Heidi Montag's plastic surgery on 'Lopez Tonight.' Patridge said Montag had "changed a bit" since they met. "She got her chin chiseled, her nose done again, her cheeks, boobs redone, lipo, butt job, I don't know ten procedures ... in one day ... It's a lot,'" Patridge said. Pratt fired back on Twitter: "Audrina -- Don't hate because your nasty Tijuana plastic surgery got you no press."

Spencer Pratt