The news comes just a few months after Jessie played a new song for her fans during a -small concert in Los ¬Angeles, which was dedicated to the 'Magic Mike' star.
The lyrics were: "Where you go I know I want to follow, let's make a promise today. Let's be still, just stay calm, so we're not rushing what we are. Pressure on, just have fun, it's not a race, no need to run, if it's for ever, let's just simply be in love."
Jessie and Channing kept their love life private, but the Bang Bang singer did take to Instagram last year to hit out at those who were comparing her to Channing's ex-wife Jenna Dewan, with whom he has six-year-old daughter Everly.
She wrote at the time: "There is a story I have seen be re-written over and over again in the past few weeks that talks about myself being compared directly to another beautiful woman regarding our looks and people picking who they think is prettier. I am so disappointed and embarrassed that my name is even involved. It's not something I stand for, at all.
"I am a woman that supports ALL women. I am a woman that loves ALL women and will not stand quietly when the media is teaching young girls to constantly compare one another. Or to pick who they think is prettier. We are all BEAUTIFUL."