It's that time in June when we celebrate dads, and plenty of stars are among the family men hearing 'Happy Father's Day!' today.

Mixed emotions mark the day for some. On her blog, Kim Kardashian posts an archive of images in honor her late father, Robert, as well as beloved stepdad Bruce Jenner, calling the holiday "always bittersweet."

And of course, parenthood often gets complicated by the media's glare, with Arnold Schwarzenegger not exactly looking like Daddy of the Year right now. Joking about his own (faux) paternity scandal, Howie Mandel tweeted, "Amazing fathers day surprise. Just found out that one of my children was fathered by pool man. I got coupon for $62 off next month service."

PopEater wants to know: Who is your favorite celebrity dad? From daddies like Will Smith and Billy Ray Cyrus with kids in the limelight, to private papas like Johnny Depp and Marc Anthony, to gay dads like Elton John, to experienced dads who keep procreating (cheers, Rod Stewart!), it's a well-rounded fraternity. And don't forget new members of the club -- check out the celebs after the jump, like Nick Cannon and Vince Vaughn, who recently became first-time dads.