May Birthday Babies

Shiloh Jolie-Pitt! Apple Martin! See which celeb tots are celebrating one to grow on this month

  • KAI TRUMP photo | Donald Trump Jr.

Credit: Bobby Bank/WireImage

Updated: Friday May 06, 2011 | 01:45 PM EDT By: Nisha Gopalan

KAI TRUMP

Donald Trump, Jr. showed off his smartest investment – daughter Kai, who turns 4 on May 12 – at the Eric Trump Foundation Golf Invitational in Briarcliff Manor, N.Y., last September.