Olivia Gail O'Brien (born November 26, 1999) is an American singer-songwriter. She rose to fame in 2016 after collaborating with Gnash on the single "I Hate U, I Love U", where she wrote and featured on the single, it also peaked at number 10 on the Billboard Hot 100 chart in the United States and number one in Australia, resulting in a recording contract with Island Records. H ... Show More