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Steven Universe. Olivia Olson is an American singer and actress. She was the original singer of "Haven't You Noticed (I'm a Star)". She voices Vanessa Doofenshmirtz in Disney's Phineas and Ferb, and Marceline Abadeer in the Cartoon Network series Adventure Time. She also played Joanna in the film Love Actually...
Early life. Career. 2003: Love Actually. 2008–2017: Phineas and Ferb, and Beauty Is Chaos. 2013-2018: Adventure Time, Steven Universe, and Phineas and Ferb. 2018–present: Nowhere Land and The X Factor. Discography. Studio albums. Extended plays. Singles. Soundtrack appearances. Filmography. Television. Video games. References. External links.
Sep 17, 2015 · Olivia Olson. Track 6 on Season 2 Soundtrack. “Haven’t You Noticed (I’m A Star)” is performed several times in Steven Universe episode, “Sadie’s Song”. The song is an in-universe pop ...