Now That's What I Call Music! 73 or Now! 73 is a double-disc compilation album which was released in Ireland on July 17, 2009, and in the United Kingdom on July 20. The album is the 73rd edition of the original series in those countries. It was released on CD and made available as a digital download. Now 73 features eight songs which reached number one on the UK Singles Chart: "Poker Face", "Evacuate the Dancefloor", "When Love Takes Over", "I'm Not Alone", "Number 1", "Mama Do (Uh Oh, Uh Oh)", "Boom Boom Pow" and "Bonkers".