Nicholas Scott "Nick" Lachey (pronounced /ləˈʃeɪ/ "la-SHAY"; born November 9, 1973) is an American pop singer, actor, producer, television host, and television personality who rose to fame in the late 1990s as a member of the boy band 98 Degrees.

Lachey starred in the hit reality television series Newlyweds: Nick and Jessica with his then-wife, Jessica Simpson. The series ran on MTV for four seasons, from 2003–2005.

Nicholas Scott Lachey was born near the border of Kentucky and Virginia in Harlan, Kentucky to Cate Fopma-Leimbach and John Lachey. He has a brother, Drew, a stepsister, Josie, a half brother, Isaac, and two adopted siblings, Zac and Kaitlin. Growing up in Ohio, he attended Cincinnati's well-regarded public School for Creative and Performing Arts, developing his vocal talent and aspiring to become an entertainer. After graduation he attended the University of Southern California (USC) in Los Angeles, California. After a year at USC, he wanted to be closer to his family and transferred to Miami University, in Oxford, Ohio, where he studied sports medicine and became a brother in the Sigma Alpha Epsilon fraternity. While finishing up at Miami, he received a phone call from long time friend, Jonathan Lippmann, who recently met Jeff Timmons. After Lippman talked Lachey and Justin Jeffre into moving to L.A., the foursome started singing everywhere they could. Lippmann left the group to start the Christian group True Vibe and was replaced by Nick's brother, Drew Lachey.