Kenzie Ziegler took over her sister Maddie’s bathtub to sing her heart out in this episode in Cosmo’s ‘Singing in the Shower.’ Watch more Singing in the Shower br br Kenzie is seriously no joke, she hopped in the water wearing a full freakin’ gown! A mood. Catch Kenzie talking about her favorite artists to cover, guys , and singing some bars from her song “Donuts.