Karina Smirnoff is busy planning her wedding to baseball player Brad Penny and says their guests will come from various parts of the world. "I have a lot of family and friends that live in Europe and Israel, and Brad has a big family in Oklahoma," Smirnoff, a 33-year-old pro-dancer on ABC series "Dancing With The Stars," told People magazine. "It's going to be a very diverse, colorful crowd." The two became engaged in November and are set to wed on Jan. 21, 2012, People said. Smirnoff and Penny plan to wed in Cozumel, Mexico, E! News reported.