This Entourage star's mother is the leader of his personal pack. Joyce Piven's son may be the consummate bachelor, but that doesn't mean this mom will keep mum about who he should date. Jeremy Piven once joked, "I did [Jay Leno's show]... and my mom said, 'Who was that attractive woman sitting next to you, Jeremy? You made a stunning couple.' I'm like, 'Mom, that's Lindsay Lohan... My mom's a little out of the loop." Um, we have to concur on that one!