The album, which will be called The King & I, is slated to go on sale May 19, which precedes the anniversary of the rap standout's May 21, 1972 birthday.
The Notorious B.I.G., whose real name was Christopher Wallace, married Evans nine days after meeting her in 1994.
Evans said in a statement Friday that she had previously spoken with the rapper's mother Voletta Wallace about a musical collaboration along the lines of Natalie Cole's famed 1991 duet with her late father Nat King Cole, Unforgettable.
"Knowing the love that B.I.G. had for [his children] Tyanna & Ceejay, I feel it's my duty to uphold & extend his legacy, especially his musical contributions," said Evans, who won a Grammy for her collaboration with Sean Combs - then known as Puff Daddy - on the 1997 memorial single for the rapper, I'll Be Missing You.
"This project is my creative reflection of the love we had & the bond we will always have," Evans said. "I'm elated to share this musical journey with our fans!"
Evans said that the forthcoming album would also feature vocals from Snoop Dogg, Lil' Kim, Busta Rhymes, among others.
The CNN error even opened the door for Evans to invite Hill to do a duet for the album.
She wrote, with emojis of a flame and a laughing face, "Up for a bonus duet, Ms. Hill? #Faith #TKAI."
