Coco Gauff of the U.S. writes "RIP Tik Tok USA" after defeating Belinda Bencic of Switzerland in a fourth round match at the Australian Open tennis championship in Melbourne, Australia, Sunday ...

‘What’s a TikTok?’ Kourtney Kardashian, Laura Dern and More Celebs Who Learned How to TikTok from Their Kids Courteney Cox and her daughter CoCo also showed off their own synchronized moves ...