On April 7, 2009, Lachey threw out the ceremonial first pitch for the MLB Opening Day game in Cincinnati, Ohio.
On July 9, 2011 Lachey sang the National Anthem for the inaugural NASCAR Sprint Cup Series race at Kentucky Speedway in Sparta, Kentucky.
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.
But in the spring of 2009, the pair announced they had split, adding that they "remain good friends who still greatly care for one another." After some time apart, they reconciled.
He was paired with professional dancer Peta Murgatroyd.
During the summer of 2003, the reality show, Newlyweds: Nick and Jessica, starring Lachey and then-wife Jessica Simpson began airing on MTV.
The couple starred in the television special The Nick and Jessica Variety Hour, which aired in 2004 and was compared to The Sonny & Cher Show.
Former "Total Request Live" host Minnillo and former boy-bander Lachey appeared together on the channel long before they began dating in 2006. Mini crush." Later, after Lachey finalized his divorce from pop princess and "Newlyweds" co-star Jessica Simpson, he and Minnillo went public as a couple.
Earlier that year, the pair began flirting on the set of Lachey's "What's Left of Me" video, which was also shot for an episode of "Making The Video." While they played a troubled couple in the clip, their chemistry on set was electric. They may never have gotten their own reality show like Lachey and Simpson, but the pair certainly never shied away from the MTV cameras, with Lachey making several appearances on "TRL" while Minnillo was still host.