Academy Award-winning songwriting team Kristen Anderson-Lopez and Robert Lopez, who wrote "Let It Go" from Disney's "Frozen," are creating an original song for Oscar host Neil Patrick Harris to perform during the show next month.

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Harris made the announcement to his Twitter followers on Tuesday before the Academy of Motion Picture Arts and Sciences followed suit.

"What they're doing, I am not at liberty to say," Harris said in a video. "But I can tell you that it won't be a song called, 'Let It O.'"

While Harris tried to shroud the project in mystery, producers Craig Zadan and Neil Meron said the married songwriting duo are working on a multimedia musical sequence called "Moving Pictures."

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"We love the Oscars and have always been huge Neil Patrick Harris fans, so when he asked us to write him a song for this year's show we said, 'Yes!' before he could finish the sentence – it's possible he may have been asking us for something else," said the Lopezes. "We are having so much fun collaborating, and have even enjoyed weaving our experience as Oscar nominees into the song."

The 87th Oscars ceremony be broadcast live on ABC from the Dolby Theatre in Hollywood on Feb. 22.