The 98 Degrees singer told ET about the letter her wrote to Rivera's family when he purchased the property earlier this month.
Nick Lachey and his wife, actress Vanessa Lachey, recently became the proud owners of a multi-million dollar home in Encino, California, which happened to belong to late singer-songwriter Jenni Rivera.
Lachey spoke with ET's Jennifer Peros at 1010 WINS in New York City on Thursday, and opened up about an emotional letter he wrote to Rivera's family, who sold the home to them earlier this month.
"It was a very, very special home to them and for them to have to part with it, I can only imagine. It was a very emotional process," the singer shared.
WATCH: Vanessa and Nick Lachey Share Cutest Holiday Card Ever!
"We just wanted to make it clear that it's a special home to us as well and all the great memories that they have, we hope to create our own memories in their honor," he continued, opening up about the contents of his touching letter.
Rivera, who died in a plane crash in 2012 at the age of 43, had lived in the home since 2008, when she purchased the property for $3.3 million, the LA Times reported. The Lacheys bought the palatial estate for $4.15 million.
WATCH: Inside the Celebrity Summer Homes We Could Never Afford
"A lot of times when you buy a house, it's just a business thing," Lachey explained. "But houses [are] chapters of our lives that we want to remember fondly and we just wanted to make it clear to them that we respected the house and respected them and wanted to kind of carry on their love."
Lachey and his 98 Degree bandmates also opened up to ET about gaining fame in the days before social media, and dished on their upcoming My2K Tour, which kicks off July 8 in Park City, Kansas. Check out the video below to hear more from ET's exclusive interview with the band.