Why is Lisa Rinna wearing a swimsuit in Central Park?

Hey, Lisa Rinna fans. The star is sharing some selfies.

No. 1: She's makeup free.

Rinna, 51, is taking part in UNICEF's #WakeUpCall campaign, designed to bring awareness to children in Syria. Cindy Crawford shared a

on Monday.

No. 2: She's in a cutout swimsuit in Central Park.

But this one's a throwback to 2008. Or so she seems to be saying. She captioned it: "Yep this really happened. 2008. Nyc Central Park. Yep."