Now That's What I Call Music! 77 (UK series)

'Now That's What I Call Music! 77 or Now! 77' is a double-disc compilation album that was released in the United Kingdom on 22 November 2010 on CD and downloadable formats. The album is the 77th edition of the UK Now! series. The Official Charts Company reported the album as the highest selling Now release since Now 56 in 2003, selling over 1.2 million copies.

Now 77 features twelve songs which reached number one on the UK Singles Chart: "Only Girl (In the World)", "Promise This", "Club Can't Handle Me", "Forget You", "Dynamite", "Written in the Stars", "All Time Low", "Please Don't Let Me Go", "Green Light", "Beautiful Monster", "Just the Way You Are" and "Airplanes." The official TV advert stated this as the most number ones ever included on a Now album.

This album has double appearances from Flo Rida, Tinie Tempah, and Bruno Mars.