In 2010, the series saw Pratt become a primary cast member, joining Audrina Patridge, Lo Bosworth and Kristin Cavallari.

[1] In 2006, MTV developed the reality television series The Hills as the spin-off of Laguna Beach: The Real Orange County.

It originally chronicled the lives of Lauren Conrad, who appeared on its predecessor, her housemate Heidi Montag, and friends Audrina Patridge and Whitney Port.

[4] In 2007, Pratt's brother Spencer began dating and later moved into an apartment with Montag, which led to the deterioration of her friendship with Conrad.

This included being a guest on the spin-off of Celebrity Big Brother, as well as making a special appearance from episodes two onwards on season 6 of E4's Made in Chelsea, a British equivalent of The Hills.

Furthermore, Pratt had a recurring role on spin-off show Made in Chelsea: NYC, which was broadcast from August 2014.

Pratt returned with a feature role for the eighth series of Made in Chelsea and met new boyfriend Josh Shepherd on the show.

[20] Pratt has been featured in several magazines such as the UK's FHM[22] and OK!,[23] and the US's Maxim,[24] H, Us Weekly[citation needed] and Runway.

[40] In April 2010, Pratt posed nude for PETA's "Be Nice to Bunnies" iPhone application, which is intended to help the public find stores and products that are kind to animals.

[42] On May 31, 2020, Pratt tweeted to "Shoot the looters" after multiple stores burnt down during the Black Lives Matter George Floyd protests.