Passage: Her tenth studio album, Confessions on a Dance Floor, was released in November 2005. Musically the album was structured like a club set composed by a DJ. It was acclaimed by critics, with Keith Caulfield from Billboard commenting that the album was a "welcome return to form for the Queen of Pop." The album won a Grammy Award for Best Electronic/Dance Album. Confessions on a Dance Floor and its lead single, "Hung Up", went on to reach number one in 40 and 41 countries respectively, earning a place in Guinness World Records. The song contained a sample of ABBA's "Gimme! Gimme! Gimme! (A Man After Midnight)", only the second time that ABBA has allowed their work to be used. ABBA songwriter Björn Ulvaeus remarked "It is a wonderful track—100 per cent solid pop music." "Sorry", the second single, became Madonna's twelfth number-one single in the UK.Madonna embarked on the Confessions Tour in May 2006, which had a global audience of 1.2 million and grossed over $193.7 million, becoming the highest-grossing tour to that date for a female artist. Madonna used religious symbols, such as the crucifix and Crown of Thorns, in the performance of "Live to Tell". It caused the Russian Orthodox Church and the Federation of Jewish Communities of Russia to urge all their members to boycott her concert. At the same time, the International Federation of the Phonographic Industry (IFPI) announced officially that Madonna had sold over 200 million copies of her albums alone worldwide.While on tour Madonna founded charitable organization Raising Malawi and partially funded an orphanage in and traveling to that country. While there, she decided to adopt a boy named David Banda in October 2006. The adoption raised strong public reaction, because Malawian law requires would-be parents to reside in Malawi for one year before adopting, which Madonna did not do. She addressed this on The Oprah Winfrey Show, saying that there were no written adoption laws in Malawi that regulated foreign adoption. She described how Banda had been suffering...

Question: Which category did Confessions on a Dance Floor win a grammy in?
Best Electronic/Dance Album