Serena, Lena Dunham, Emma Watson 'lean in together'

It seems that Serena Williams is never quite done showing up in pop-culture and pop-thought places alongside famous friends, namely likewise powerful women. The latest clip promoting Sheryl Sandberg's "Lean In" campaign features Serena speaking on a tennis court, interspersed with her fellow sportswoman, the recently retired Abby Wambach, and the likes of Kerry Washington, Lena Dunham, Eva Longoria, Emma Watson, Megyn Kelly, Selena Gomez and Sandberg herself, many of whom appear in their own "natural habitats."

"Behind every successful woman ... is another successful woman," reads the clip. "We are more courageous ... when we encourage each other ... We are allies, not rivals."

Each goes on to name a fellow female who has helped her become the prominent person she is, and Serena name-drops (who else?) sister Venus Williams. Wambach speaks to a forerunner in soccer stardom, Mia Hamm, as having a great effect on her own life and career.

Serena and Venus have their work cut out for them this week as Wimbledon begins at the All England Club. To their credit, they'll lean in together, rather literally, in doubles action at SW19 as well. Here we go.

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