On the April 17, 2007 results show, Lachey made a surprise appearance to reprise his "Save a Horse (Ride a Cowboy)" freestyle dance with Cheryl Burke.
Simpson rose to fame with the release of her debut single, "I Wanna Love You Forever", which peaked inside the Top 5 of the Billboard Hot 100.
Since that time, Simpson has made many recordings, starred in several television shows, movies and commercials, launched a line of hair and beauty products, and designed fragrances, shoes and handbags for women.
She has devoted time to philanthropic efforts including Operation Smile and a USO-hosted tour for troops stationed overseas.
He is the brother of singer and actor Drew Lachey, alongside whom he has worked closely.
He attended grade school at Clovernook Elementary School in North College Hill, Ohio (a suburb of Cincinnati, Ohio), and then went to the School for Creative and Performing Arts in Cincinnati, Ohio.