Ben Affleck and His Beard Step Out Post-Oscars for Kids Charity

Matt Donnelly
omg! Celeb News
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Ben Affleck seems to be enjoying a little downtime following his Best Picture win for "Argo."

The director and dad stepped out for Sunday's 10th annual John Varvatos Stuart House benefit for child sexual assault victims, where the rock-friendly fashion designer raises funds for the component of UCLA's Rape Treatment Center.

Affleck and wife Jennifer Garner casually roamed the family friendly event with other star parents including Cindy Crawford and Rande Gerber, Naomi Watts and Liev Schreiber, Rachel Zoe and Rodger Berman, Justin Chambers, and new mom Molly Sims.

The two-time Oscar winner looked sleek in a gray blazer but one element of his look was more distracting: his beard. Garner famously brought a pair of clippers with her on Oscar night to force her husband shave the facial hair he grew for the sake of superstition at the after parties, and the actor was seen a few days later with what appeared to be just a few days of growth. But, on Sunday, the scruff was in full effect.

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The Varvatos boutique in West Hollywood played host for the event, shutting down an intersection and filling it with tents for kids activities, a silent auction, and an eventual performance from Steven Tyler and Joe Perry.

The Aerosmith rockers captivated a crowd that included Jeremy Piven, Nina Dobrev, and newly-minted fitness author Joe Manganiello.

Running through hits like "Sweet Emotion" and "Dream On," Tyler's energy wasn't lacking as he pulled guitar player Slash on stage and heckled the Hollywood crowd for being "too quiet."

After the set, rocker Billy Idol played DJ in the boutique just before guests filed out, grabbing In-N-Out burger as a parting snack.

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