Lady Gaga has had, by pretty much any metric, a quite remarkable few months. She won a Golden Globe (for her performance in American Horror Story: Hotel) in January, also generating one of the year’s first full-fledged viral moments, when she brushed past Leonardo DiCaprio on her way up to receive her prize. She drew widespread praise for her rendition of the national anthem at the Super Bowl. And then, a week later, she again drew widespread praise, this time at the Grammys, for her tribute to the late David Bowie.

And now, tonight, she is nominated for her first Oscar, for her original song, “Til It Happens to You” (which she co-wrote with Diane Warren), from the documentary The Hunting Ground, which explores rape on college campuses in the U.S.

Gaga’s performance was introduced by Vice President Joe Biden, who spoke about the White House’s “It’s On Us” campaign, addressing sexual assault. Gaga’s performance—in which she powerfully performed from a piano—featured a group of sexual-assault survivors joining her onstage at the end, drawing a standing ovation (and tears) from members of the audience. Earlier this week, Gaga voiced her support of pop star Kesha, who is currently involved in a legal battle with Sony.

Related: Lady Gaga Designer Brandon Maxwell Explains Gaga’s Evolving Look