Sara & Erin Foster Celebrate Their Dad David Foster's Birthday

Sara and Erin Foster go for a stroll down Beverly Drive with two pals on Monday (November 3) in Beverly Hills, Calif.

The comedy writers and performers are set to topline their own scripted series for VH1 that will follow two sisters who say they would never do a reality show.

Over the weekend, the sisters celebrated their famous music producer dad David Foster‘s birthday with a group of friends.

“Happy birthday dad!! we love you!🎉🎉🎉🎉 @efosta @allisonjones09 @itsashbenzo @donatiennela @sweetbabyjamie,” Sara wrote on her Instagram account.

FYI: Erin is carrying a Donatienne bag.