Full song by Idina Menzel from Disney’s FROZEN – “Let It Go”

Broadway star Idina Menzel sings "Let It Go" in FROZEN

Broadway star Idina Menzel performs “Let It Go” in this full sequence from Disney’s epic comedy adventure Frozen.  After four weeks, the animated feature has grossed over $164 million worldwide.

Frozen features eight original songs from songwriting duo Kristen and Robert Lopez, including the gripping “Let It Go,” Elsa’s self-defining anthem.

‘Let It Go’ was written by Kristen Anderson-Lopez and Robert Lopez (Robert’s work on Broadway includes the htis The Book of Mormon and Avenue Q).  Said Robert; ‘We wanted to write the biggest, beltiest diva number we could channel because we knew we had Idina Menzel – who just knocks it out of the park – and we knew her character Elsa was experiencing something epic in her life.’

(source)