"They've been spending lots of time together and Nick really enjoys Jessica's free spirit and easy going attitude for life," an insider told E! News.
However, Cannon is keeping his new relationship hush hush "out of respect for [his] family since his divorce is not final" after six years of marriage.
Cannon and White have reportedly been close for years and the 34-year-old model even helped him when his marriage was crumbling.
A source close to the new couple told E! News that "Jessica and Nick have been friends for some time now" although they were "purely just friends" when Cannon was married to Carey, a former American Idol judge.
"Jessica fully respected Nick's relationship and would never get in between anything with them. When Nick was going through his breakup Jessica was there for him as a friend," the source explained.
"Jessica been in the studio lately and Nick has been very supportive with her focusing on her music career and giving her some great pointers and direction as she explores her talents. They been spending lots of time together and Nick really enjoys Jessica's free spirit and easy going attitude for life."
Cannon, who's currently living in his New Jersey mansion alone, has two children with Carey -- Moroccan and Monroe, who were born in April of 2011. They wed in 2008 and Cannon filed for divorce this past January after they had allegedly been separated for six months.