Neil Patrick Harris will perform song at Oscars written by “Frozen” songwriters

Neil Patrick Harris will perform a song at the Oscars done by “Frozen” songwriters Robert and Kristen Lopez.

Harris revealed the news on Twitter but wasn’t able to give details on the song. He promised the song won’t be called, “Let It O.”

He said the song could be written while the show is going on.

At the 2011 Tony Awards Harris ended the night with a rap about what happened during the ceremony.