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Ron Batzdorff/Brownhouse Prod/Botnp Inc/Kobal/Shutterstock, Lester Cohen/Getty Images for Universal Music Group
While her character wasn't beloved by Mia in The Princess Diaries, Mandy has maintained a huge fan base thanks to her singing career and Emmy-nominated role as Rebecca Pearson in NBC's hit series This Is Us.
She tied the knot musician Ryan Adams in 2008, but the pair divorced in 2016. She later wed musician Taylor Goldsmith in 2018, and the two now share sons August "Gus" Harrison (born February 2001) and Oscar "Ozzie" Bennett (born October 2022).