Leave it to Paris Hilton to turn a New Year's celebration into a media frenzy — just because of the people she chose to party with. The heiress downed tequila shots with frenemy Britney Spears' ex, Kevin Federline, at both Pure and LAX nightclubs in Las Vegas over the weekend. Then she was spotted with Larry Birkhead at LAX on New Year's Eve. Maybe Paris just wants to know what a good dad looks like? After all, both K-Fed and Larry were chosen as Details magazine's "Good Father"!