Now That's What I Call Music!

Now That's What I Call Music (U.S. Series) is an original series of around 30 compilation albums released since 1998. The albums contain the hits or modern music of the latest time period. Most of the songs are singles from various artists. Most of the albums contain anywhere from 18 to 20 tracks.
"Now!" series in other countries.
More recently, there have been numerous different versions of the brand in other parts of the world, including:
Although there is some overlap in content between current releases in different markets, there are also differences such as the inclusion of local hits, and (for example) the single-CD format of the U.S. releases, in contrast with the traditional double-album UK format.