updated 02/17/2011 AT 2:30 PM ET
•originally published 02/17/2011 AT 2:35 PM ET
Jessica Alba looks like anything but a glowing mom-to-be when working with Jimmy Kimmel, but fear not: It’s just acting.
Alba, who announced Wednesday that she’s pregnant with her second child, filmed a skit this week with Eva Longoria, Kelly Ripa and other stars about Kimmel’s secret to keeping Hollywood’s hottest bodies in shape.
The skit will air on the Jimmy Kimmel Live: After the Academy Awards special on Sunday, Feb. 27 on ABC.