claim: 2 Hearts was the first commercial single since Minogue was diagnosed with breast cancer and it was successful.
evidence: Oksana Petrovna Grigorieva -LRB- Оксана Григорьева born 23 February 1970 -RRB- is a Russian singer-songwriter and pianist .. Russian. Russians. singer-songwriter. singer-songwriter. pianist. pianist. She was born in Saransk , Mordovia , USSR , and raised in Ukraine and Russia .. Saransk. Saransk. USSR. USSR. Mordovia. Mordovia. Ukraine. Ukraine. Russia. Russia. She studied music in Moscow and completed conservatoire studies in Kazan , before moving to London .. Moscow. Moscow. conservatoire. conservatoire. Kazan. Kazan. London. London. After studying music at the Royal Academy of Music , she moved to the United States , with periods spent living in New York City and Los Angeles , California .. Royal Academy of Music. Royal Academy of Music. United States. United States. New York City. New York City. She taught music in the U.S. , and patented a technique of teaching musical notation to children .. musical notation. musical notation. Grigorieva gained attention as a songwriter in 2006 , after the song that she wrote , `` Un dia llegara '' , became popular on the Josh Groban album Awake .. Josh Groban. Josh Groban. Awake. Awake ( Josh Groban album ). In 2009 , Grigorieva 's music album Beautiful Heartache was released ; the actor and director Mel Gibson , with whom she was romantically involved and had a child , served as executive producer .. Beautiful Heartache. Beautiful Heartache. Mel Gibson. Mel Gibson. executive producer. executive producer. The following year , the couple had a widely publicized falling-out that eventually involved highly public legal proceedings and acrimony .