evan rachel wood plays the mom, queen iduna. >> to be able to sing in one of the films, an animated film full circle. >> elso, the past is not what it means. must find the truth. >> being in the sequel allowed sterling to score some cool dad points with his two boys. >> i think if the movie is everything that i hope and know that it will be, i think they'll be really excited to say, like, my dad's a port of that. >> olaf himself josh gad has two kids of his own. how does he handle meltdowns? he calls it foot technique. >> you gently tap-tap them, and then you ask them, are you ready now? is it okay? use your toe. not our hand. >> ah, the toe nudge. okay, josh. not sure about that move buck let's move on and talk about the legend, my favorite, dolly parton. fans will get to see a side of her they have never seen before and it's all thanks to a kristian rock band from australia. take it away, dolly. >> i'm dolly parton. i want to welcome you to our new music video "god only knows." >> this is a "e.t." exclusive. >> yay. ♪ god only knows what you have been through ♪ ♪ god only knows what th