Fall Out Boy bass player and lyricist / Ashlee Simpson husband Pete Wentz is 29 today. Happy birthday to the rocker and future dad-to-be.

Here's a little photo gallery of the newly-married Mr. and Mrs. Wentz (yes, she took his last name) to commemorate this joyous occasion.

Click to enlarge any of the Pete Wentz and Ashlee Simpson pics below ...

Who's coming up next? When does your favorite star celebrate another year of not dying? Peep our calendar of celebrity birthdays now and see.