Jenna Johnson Praises JoJo Siwa's Incredible Lift on 'DWTS' (Exclusive)

ET spoke with JoJo Siwa and her dance partner, Jenna Johnson, about the 18-year-old singer’s amazing lift during their routine on ‘Dancing With the Stars’ Monday night. During the Britney Spears theme night, JoJo showed off her amazing strength while dancing to the pop star’s hit song, ‘...Baby One More Time.’ The two also shared what it would mean to have Britney watch to their routine.  ‘Dancing With the Stars’ airs Mondays on ABC.