There's that baby bump again!
Toward the end of the video, the Houston-born beauty sings, "I'm trying to make us three / From that two / He's still the one!"
The 30-year-old Dreamgirls star (she celebrated the milestone birthday September 4) told Piers Morgan in June she "always said she would have a baby at 30."
She debuted her baby bump on the red carpet of this year’s MTV VMAs in August, nearly causing Twitter to jam up as fans echoed the huge announcement.
Countdown premieres Thursday at 7:56 p.m. ET on MTV and Beyonce's website, beyonceonline.com.