Usher Raymond will make a surprise appearance for his mentor and friend Clive Davis on an upcoming Feb.19 episode of Katie.

Davis, the 80-year-old recording industry executive and producer responsible for the musical careers of artists such as, Whitney Houston, Kelly Clarkson, Santana, and Jennifer Hudson has recently come out as bisexual in his new book, The Soundtrack of My Life.

Davis, who has married and divorced twice, wrote candidly about his first same-sex encounter with a man he met at a New York City club, thirty years ago.

"After my second marriage failed, I met a man who was also grounded in music. Having only had loving relationships and sexual intimacy with women, I opened myself up to the possibility that I could have that with a male, and found that I could," Davis wrote.

Davis recalled, after a stage of "soul searching and analysis," he separated from his second wife in 1985, then becoming involved in relationships with two women and a man. Davis writes that his coming out deeply affected his relationship with one of his sons, Mitchell. After Davis called "one very trying year," the father and son worked out their differences. 

"Bisexuality is misunderstood; the adage is that you're either straight or gay or lying, but that's not my experience. To call me anything other than bisexual would be inaccurate," Davis wrote.

Davis told ABC that bisexuality is "maligned and misunderstood" and that it is his truth and he decided it was time for him to say so publicly. 

"I'm not lying and it [Bisexuality] exists," Davis said in a interview with ABC.

Eight-time GRAMMY artist Usher is scheduled to make a surprise visit on the show to support the man who helped him get his start.

Usher said this about Davis during the show:

"You know, without that artist development and that ability to understand how to-- present myself and have an understanding of style, I would not be in the position to be, you know, a coach on The Voice-- and-- and-- introduce talent like Justin Bieber and-- writers like Rico Love, who was...my actual first artist, who went on to be an incredible writer and also producer. But-- you know, without that artist development of Arista and LaFace Records, I wouldn't be the mentor that I am today."