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" stars Tanner Buchanan and Mary Mouser revealed their engagement Thursday after seemingly keeping their romance under wraps.

Cobra Kai fans have been shipping Tanner Buchanan and Mary Mouser ’s characters for years. Little did they know, there was a real-life romance brewing between the costars.

'Cobra Kai' stars Tanner Buchanan and Mary Mouser shocked fans by announcing their relationship and their engagement at the red carpet.

Red carpets have seen it all — fashion wins, awkward moments, surprise baby bumps. But Cobra Kai stars Tanner Buchanan and Mary Mouser just gave fans a moment to remember.

Cobra Kai fans have been shipping Tanner Buchanan and Mary Mouser ’s characters for years. Little did they know, there was a real-life romance brewing between the costars.

Talk about a hard launch! Cobra Kai costars Mary Mouser and Tanner Buchanan confirmed their romance in a big way by kissing and wearing rings at the show's series finale event. Are they engaged ...

Tanner Buchanan and Mary Mouser announced their engagement on Wednesday at the season finale premiere event of "Cobra Kai." ...

Red carpets have seen it all — fashion wins, awkward moments, surprise baby bumps. But Cobra Kai stars Tanner Buchanan and Mary Mouser just gave fans a moment to remember.

Wedding bells are ringing for “Cobra Kai” costars Mary Mouser and Tanner Buchanan, and the timing couldn’t be better.

Cobra Kai's Mary Mouser and Tanner Buchanan confirmed their romance with a kiss while seemingly hinting at an engagement by showing off matching rings.