Kiefer Sutherland reportedly rushed to Brooke Shields‘ defense by headbutting fashion designer Jack McCollough. According to New York’s Daily News, Shields and Sutherland were talking at a Met Gala after-party early Tuesday when McCollough, a friend of Shields’, interrupted them and accidentally bumped into her. This resulted in a heated exchange between the two men, with Sutherland demanding that McCollough apologize. “They started arguing and then he just head-butted him,” a witness told the New York Post. McCollough was quoted telling authorities that Sutherland “was drunk and obnoxious and wouldn’t back down or be logical.” Shields was shoved but not hurt, and McCullough suffered cuts on his nose. Shields’ reps told TMZ.com that McCollough “did nothing inappropriate. It’s not clear what caused Kiefer to do what he did.” Sutherland and Shields are expected to speak to the police today. Sutherland was arrested in 2004 and 2007 for DUI, and in the 2007 case, he pleaded no contest and was sentenced to 48 days in jail. ~Meryl H.