Someone To Watch Over Me is the singer's third LP, and is released on November 7.
Boyle announced the news on the semi-final results show of America's Got Talent, after performing a track from the record called 'You Have To Be There'.
The song was written by Abba legends Benny Andersson and Bjorn Ulvaeus and is taken from their popular Swedish musical Kristina.
Of her performance on the show, she said: "I'm so pleased the audience enjoyed the song. I really loved performing that big number. I was also a little nervous introducing something new.
"America's Got Talent - it's where I started with my first album, so it was wonderful to be back and for the support."
The LP is described as a "diverse mix of music" inspired by the life stories of Boyle's fans who write letters to her.
Someone To Watch Over Me follows the star's first two albums I Dreamed a Dream and The Gift, which have sold over 14 million copies in 14 months and topped the charts in over 30 countries.
It was announced earlier this year that Boyle's life story will be told in a musical.
Watch Susan Boyle perform 'You Have To Be There' below: