Watch: Idina Menzel sings ‘Let It Go’ with Jimmy Fallon, the Roots

There’s no question she was playing to a bigger audience Sunday night at the Academy Awards.

But Idina Menzel appeared to be having way more fun Monday when she dropped by “The Tonight Show” to jam with Jimmy Fallon and the Roots.

As she did on the Oscars (where John Travolta notoriously mangled her name in his introduction), the singer performed “Let It Go,” the sweeping power ballad from Disney’s “Frozen” that was named best original song Sunday.

OSCARS 2014: Full coverage | Best & worst moments

Backed by Fallon and his house band on a variety of kid-friendly instruments, though — a setup the host used in his “Late Night” days for appearances by Carly Rae Jepsen and Robin Thicke — Menzel seemed far more relaxed than she did at the Dolby Theatre.

Idina Menzel: 1. Adele Dazeem: 0.

Have a look below.

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Twitter: @mikaelwood