VIDEO: Marie Osmond Explains Why She Turned Down GREASE; Won't See BOOK OF MORMON

On last night's WATCH WHAT HAPPENS LIVE, singer Marie Osmond told Andy Cohen why she turned down the role of Sandy in GREASE. "Well they asked me first, Sandy was a lot edgier, Sandy was not a nice girl," she explains, "but obviously they liked Olivia better than me because they toned her down for Olivia!"

Later, a WWHL caller asks singer Osmond, a Mormon, if she's seen the hit Broadway show THE BOOK OF MORMON and Marie explains why she will not be seeing it.

Osmond recorded "Paper Roses" at age 12, making history as the youngest Country female to have her debut record go to #1 on the charts, followed by two Grammy nominations. She still holds the record as the youngest female host of a national television variety show, The Donny & Marie Show (1976 - 1981).

She has recorded more than 35 albums and has numerous gold records and hit songs, including a Country Music Awards Vocal Duo of the Year Award for "Meet Me in Montana." Osmond's 2010 album titled I Can Do This was an iTunes top ten listing after she performed "Pie Jesu" on Oprah. Donny & Marie's single "A Beautiful Life" reached #1 in 2012.

Beckoned to the Broadway stage in the mid-1990s, Osmond mastered a new style of singing, to which she received outstanding reviews - starring in Rodgers and Hammerstein's The Sound of Music and The King and I on national and international tours.

Osmond was also a finalist on season five of Dancing with the Stars, watched by 25 million people.

Osmond was the first celebrity to publish a book about postpartum depression in Behind the Smile (2001), followed by Might As Well Laugh About It Now (2009). In 2013, Osmond's latest book, The Key is Love, became her 3rd The New York Times Best Seller in a row.

Photo: Charles Sykes/Bravo