Betina Vadimovna Popova is a Russian retired competitive ice dancer. With partner Sergey Mozgov, she was the 2017 CS Warsaw Cup champion. With former partner Yuri Vlasenko, she was the 2014–15 JGP Final bronze medalist.

Sergey Alexandrovich Mozgov is a Russian retired competitive ice dancer. With former partner Betina Popova, he is the 2017 CS Warsaw Cup champion. With former partner Anna Yanovskaya, he was the 2015 World Junior champion, two-time JGP Final champion, the 2012 Youth Olympics champion, the 2014 World Junior silver medalist, and the 2015 Russian junior national champion.