But in "Frozen 2," Groff performs his own ballad alongside Sven the reindeer. "Bobby and Kristen Lopez, who did the music for the first film, wrote Kristoff this epic kind of 80s ballad and the ...

Kristoff gets his own moment to shine in ‘Frozen 2.’ Jonathan Groff’s voice soars on ‘Lost In The Woods,’ a heartfelt 1980s power ballad in which he laments on 'what it feels like to be ...

In Disney's 'Frozen' on stage, actor Dan Plehal transforms into Kristoff's reindeer friend, Sven. It's an incredible, physical feat of strength, precision and emotion.