Here Is Heidi Montag's Homemade Audition Video for Transformers 3 Matt Cherette · 05/26/10 06:35PM It's no secret that Heidi Montag wants to replace Megan Fox in the third installment of Michael Bay's Transformers series, but we didn't know how badly she longed for it until now. Inside, an "audition" video she made for Bay.