Tanner Buchanan and Mary Mouser, co-stars on the hit "Karate Kid" sequel "Cobra Kai," are engaged. The couple revealed their rings on the red carpet.

Cobra Kai co-stars Mary Mouser and Tanner Buchanan have recently shared news about their engagement through a post on Instagram, leaving fans happy and surprised at the same time.

Exciting news: metro.news has merged with metro.co.uk! That means that as well as keeping up with all the latest news and features you love from Metro Newspaper you’ll also be joining the 23 ...