Detailed Instructions: In this task, you are given a question and a context passage. You have to answer the question based on the given passage.
Q: Which hit top of the charts in less countries, Confessions on a Dance Floor or Hung Up?, Context: 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.
A:
Confessions on a Dance Floor