Home VIDEOS Trending Kevin Hart hilariously training with Serena Williams Kevin Hart hilariously training with Serena Williams Kevin Hart working on his flexibility with Serena Williams in a hilarious Nike training! Check out his flexibility levels. By Defender News Service - November 7, 2016 RELATED ARTICLESMORE FROM AUTHOR National Nike unveils ‘Watch Us Rise’ Black History Month visuals honoring inspiring leaders Arts + Books Bill Cosby returns to stage for ‘special comedy concert’ in Philadelphia ENTERTAINMENT Viola Davis to star in new comedy ‘Black Don’t Crack’ ENTERTAINMENT Def Comedy Jam alums back together in new Netflix series Celebrity Kevin Hart’s accuser hires high-powered lawyer Kevin Hart working on his flexibility with Serena Williams in a hilarious Nike training! Check out his flexibility levels.