i'm tom bergeron. let's see how far they've come. watch. >> my expectations are really high and i felt i was going to get a bit more. >> mya's been pushing herself really hard and is under a lot of pressure. >> let's do that again. again. one more time. this is like punishment, you know that? >> seven, eight. one, two, three. >> some of the stuff we're doing, it's really, really hard. i want to make it more difficult. i want to prove my dancing ability is good enough to make it in there. >> as a performer, i'll tell you what, donny osmond is second to none. i cannot believe the energy he gets out there on every dance. >> how old is this guy anyway? he acts like he's 3 years old on sugar. >> okay, seriously, we're going to do this 100 more times until you get it right because you keep getting that bit wrong. >> can we make a game out of it? >> one word to describe my brother? dedicated. i'd love to see my brother win. i think it would be fantastic. >> great job! >> mya went from being a little girl not wanting to dance or sing outside