CBS has announced that Stephen Colbert will officially take over for David Letterman on September 8th.

Letterman is signing off in May and Colbert's show will launch with the Fall TV season.

Stephen Colbert starts Sept. 8 on "Late Show," CBS announced Monday.

"I have nine months to make a show, just like a baby. So first, I should find out how you make a baby," Colbert said.

"The production office is open, the premiere date is set, and we’re incredibly excited to welcome the creative and comedic genius of Stephen Colbert to CBS late night this fall,” said Nina Tassler, chairman of CBS Entertainment.

CBS will air Letterman repeats until Colbert starts.