Sister Cristina, a reformed rebel from Sicily, won a record contract with Universal for her victory in The Voice Italy in early June.
The music company has released a video snippet of the soul sister in the studio, working on a recording of Alicia Keys' "No One", the song that won over the show's judges during auditions in March.
Watch the video here:
No other details of the album were given other than that it would be “coming soon”.
Preparations for the debut album come after Sister Cristina hinted hat she did not want a musical career.
"I'm not here to start a career but because I want to impart a message," she said after winning The Voice Italy, adding that she was following Pope Francis's calls for a Catholic Church that is closer to ordinary people.
The nun wowed viewers with her versions of songs like "Girls Just Want To Have Fun" and "Time of My Life" from the film "Dirty Dancing".
But it was her performance of "No One" that first drew attention.
Fame brought media scrutiny to her past, including interviews with an ex-boyfriend and with Claudia Koll, the director of the musical academy where she trained – herself an ex-starlet who is now a lay sister.
"Cristina's personal journey has brought her to maturity and artistic fullness thanks to a mysterious and special force. By giving herself to the Lord, she has enriched her art," Koll said in an interview.
Sister Cristina said she used to rebel against religion when she sang in a band but was inspired to be a nun when she auditioned for a part in a musical about the founder of the Ursuline Order, Saint Angela Merici.
She became a novice in 2009 and worked for two years with poor children in Brazil before formally joining the order and still has to take her final vows.