Maksim and Valentin Chmerkovskiy are exclusively taking ET behind the scenes of their rehearsals for their !In their first in-person interview in over a year and a half, the pros open up about how excited they are to get back on tour, what fans can expect from the 19-city show and more.«It was kind of a play on words,» Val told ET's Lauren Zima of how he and Maks came up with the name. «It wasn't supposed to be so literal.