jennifer and derek will do the waltz. and kyle and lacey, will also do a jive. enough. the strangeand her partner, mark ballas. ♪ ♪ ♪ ♪ ♪ ♪ [ cheers and applause ] >> dancing the viennese waltz, jennifer grey, and her partner, derek hough. ♪ ♪ ♪ ♪ ♪ [ cheers and applause ] >> dancing the jive, kyle massey and his partner, lacey schwimmer. ♪ >> come on. come on. ♪ ♪ ♪ ♪ ♪ [ cheers and applause ] >> ladies and gentlemen, they haven't slept all night. that was fun. how about a big hand for everybody. we told you. coming up, robin roberts, chancing the cha-cha. stay with us. >> you did it. you did it. you got it. you are amazing. i admire you. i am your biggest fan. and i love you. your body is awesome. i am extremely jealous. and we just love you >>> you have seen the stars do it. now, it is time for our star. her 50th birthday challenge. the ultimate ballroom moment. mr. announcer, please. >> dancing the cha-cha, robin roberts and her partner, maksim chmerkovskiy. ♪ ♪ ♪ ♪ >> ladies and gentlemen, the judges' scores. >> oh. [ cheers and applause ] oh, my. >> it was good. >> oh. they o