HAPPY BIRTHDAY, x2!

Today both Brad Pitt and Katie Holmes celebrate birthdays; Brad is turning 45 and Katie is the big 3-0!

Tom Cruise told Ryan Seacrest that he definitely has some surprises up his sleeve for Katie's big day, "I've got some things planned.  I've been kind of surprising her throughout the week with things."

We don't know what Angelina Jolie's got in store for Brad, maybe another motorcycle?  Maybe another baby?!