affleckface031013_09_460-1.jpg They are the definition of a power couple!

Ben Affleck and wife Jennifer Garner acted as honorary co-chairs for the John Varvatos 10th Annual Stuart House Benefit on Sunday, and the Hollywood pair could not have been more gracious about lending their name to a good cause!

The event, which featured a performance by Steven Tyler and Joe Perry of Aerosmith, raised funds for the charity, which serves the special needs of sexually abused children.

Other celebs in attendance included Cindy Crawford and husband Randy Gerber, True Blood's Joe Manganiello, Eddie Van Halen and others.

Violet, Seraphina, and Samuel must be so proud of their parents!