Question: How many Grammy Awards did this American singer-songwriter, multi-instrumentalist, and record producer win who released the album "Diamonds and Pearls?"

Diamonds and Pearls is the thirteenth studio album by American recording artist Prince, and the first with his backing band The New Power Generation.  It was released on October 1, 1991 by Paisley Park Records and Warner Bros.  Records.  The album produced several hit singles, including "Gett Off", "Cream", "Money Don't Matter 2 Night", "Insatiable", and the title track.  Dancers Lori Werner (then dancing under the stage name of Lori Elle) and Robia LaMorte, known as "Diamond" and "Pearl" respectively, appeared on the holographic cover (re-pressings of the album are non-holographic).  Diamond and Pearl also appeared in the music videos for "Cream", "Strollin'", "Gett Off", and the title track, and also participated in Prince's Diamonds and Pearls Tour. <SEP>  He was a musical innovator who was known for his eclectic work, flamboyant stage presence, extravagant dress and makeup, and wide vocal range. Prince Rogers Nelson (June 7, 1958 – April 21, 2016) was an American singer-songwriter, multi-instrumentalist, and record producer.  His music integrates a wide variety of styles, including funk, rock, R&B, new wave, soul, psychedelia, and pop.  He has sold over 100 million records worldwide, making him one of the best-selling music artists of all time.  He won seven Grammy Awards, an American Music Award, a Golden Globe Award, and an Academy Award for the film "Purple Rain".  He was inducted into the Rock and Roll Hall of Fame in 2004, his first year of eligibility. <SEP> Andrew Luis "Dru" Castro is a Grammy Award-winning recording engineer, producer and songwriter in Atlanta, Georgia.  He has produced or engineered songs for artists such as Ciara, Keyshia Cole, Usher, R. Kelly, T-Pain, Trina, Jamie Foxx and India.Arie.  Recently, Castro produced and wrote songs with the Grammy award winning singer/songwriter India.Arie on her recently released album "".  Her 2006 album, "", for which Castro recorded and/or produced seven songs, debuted and peaked at number one on the "Billboard" 200 and the Top R&B/Hip-Hop Albums and was nominated for three Grammy Awards, including "Best R&B Album".  To date Castro has worked on 12 Grammy nominated projects (4 have won the award) See Below.  In 2010 Castro won a Grammy with India.Arie as a Producer/Engineer for Best Urban Alternative Performance on the song "Pearls". <SEP> Gordon Anthony Chambers (c. 1969) is an American singer-songwriter and record producer who has written songs for more than 75 recording artists including Angie Stone, Yolanda Adams, The Isley Brothers, Brandy, Trey Songz, Chaka Khan, Patti Labelle, Usher, Marc Anthony, Jamie Foxx, Aretha Franklin, Whitney Houston and Beyoncé Knowles.  His number-1 hits as lyricist include Anita Baker's Grammy-winning hit "I Apologize", Brownstone's Grammy-nominated hit "If You Love Me", Angie Stone's "No More Rain (In This Cloud)", the Grammy-nominated theme of 1996's "Set It Off" "Missing You" (performed by Brandy, Tamia, Gladys Knight and Chaka Khan) and Yolanda Adams "Someone Watching Over Me".  He is the winner of eight awards from the American Society of Composers, Authors and Publishers (ASCAP), has four Dove Award nominations, and his songs have been nominated for three Grammy Awards. Anita Baker won a Grammy for "I Apologize", which Chambers wrote.  His songs have been performed at the Essence Awards, American Music Awards, the Goodwill Games and the White House.  His prestigious appearances, in addition to acclaimed European and Japanese tours,have included the Essence Music Festival, the Congressional Black Caucus, the Apollo Theater, Constitution Hall, B. B King's and the Kennedy Center.