Nicholas Scott Lachey (born November 9, 1973) is an American singer, dancer, actor, television personality, and host. He rose to fame as the lead singer of the multi-platinum-selling boyband 98 Degrees, and later starred in the reality series Newlyweds: Nick and Jessica with his then-wife, Jessica Simpson. He has released four solo albums: SoulO, What's Left of Me, A Father's Lullaby, and Soundtrack of My Life. He also had a recurring role on the television series Charmed.

He hosted NBC's The Sing-Off, co-hosted VH1's Big Morning Buzz Live from 2014 to 2015, and Nickelodeon's America's Most Musical Family, and co-hosts the Netflix shows Love Is Blind and The Ultimatum with his wife Vanessa Lachey. He is also the sole host of Perfect Match for Netflix.