"Many of you have been asking if I will be back for season 20 of DWTS and I wanted all of my incredible family to hear it directly from me," Smirnoff wrote. "After a lot of thought and prayer, I've decided to focus my energies on some other exciting endeavors including adding author to my resume."
Karina made her DWTS debut in the show's third season where she came in second, almost securing the coveted mirror ball trophy. Since her start in 2006, she's appeared in 16 straight seasons of the show – except season 10. Karina finally came in first in season 13, when she was partnered with J.R. Martinez.
"I have absolutely loved dancing for all of you for all these years and feel blessed to have been given a platform to put my passion for dance, choreography and creativity on display," Smirnoff continues. "DWTS has been a huge part of my life for the last 10 years and I will always have a special place in my heart for it. I am thrilled that now you will be seeing more of me in new arenas in the days and weeks to come."