It may be her birthday, but Jessica Alba didn't use that as an excuse to skip the gym on Monday (April 28).

Rocking black leggings and a long sleeved red tee, the new 33-year-old was accompanied to her work out by her hubby Cash Warren.

In career news, the "Sin City: A Dame to Kill For" actress is currently filming the horror flick,"The Veil."

Per the synopsis:"Thirty years after members of a religious cult committed mass suicide, the lone survivor returns to the scene of the tragedy with a documentary crew in tow."