Live from Los Angeles, introducing Lady Gaga at the Academy Awards, it's Vice President Joe Biden.
Biden and his wife, Jill, are set to attend the Oscars on Sunday night, and the vice president's office says he'll introduce Gaga before she performs the song "Til It Happens To You."
Gaga is nominated for an Oscar for best original song. "Til It Happens To You" is part of a documentary, "The Hunting Ground," about sexual assault on campuses.
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Biden's office says he'll use his introduction to urge Americans to speak out against sexual assault and support the administration's "It's On Us" campaign. Domestic violence prevention is a signature issue for Biden.