Former Baywatch star Donna D'Errico has been clapping back at people who say she's too old to be wearing a bikini at age 52. On the Fourth of July, she posted a short video of herself in a stars-and-stripes number. She got plenty of positive reactions, but also a lot of hate. So this week she replied on Instagram -- with another bikini shot. She wrote, "Quite a few women ... thought I was 'classier than that' and 'too old to wear a bikini' and, my favorite, 'desperate.' Let me tell you something that might surprise you. I can actually wear and do literally whatever I want."