Since 2007, DJ Earworm has made it an end-of-the-year tradition to make a super mix out of the Billboard top 25 songs of the year. The 2010 edition, "United States of Pop (Don't Stop the Pop)", is out today, and you can download it (as well as see what tracks he used) here. Be warned: It sure does feature a lot of Ke$ha.

The mixes kind of function as musical time capsules each year. Compare, for instance, 2007 with 2010, below. Pop music doesn't seem like it's changed that much in three years, but you can definitely hear a progression from hip-hop and rap to sticky-sweet girl pop.

To take the full sonic journey, here are links to 2008 and 2009.

With Long Island home prices at or near record levels, some LIers are turning to modular homes as an alternative. NewsdayTV's Doug Geed and Newsday business reporter Jonathan LaMantia have the details. Credit: Newsday Studios; Newsday / Howard Schnapp; File Footage

'They really have it down to a science' With Long Island home prices at or near record levels, some LIers are turning to modular homes as an alternative. NewsdayTV's Doug Geed and Newsday business reporter Jonathan LaMantia have the details.

With Long Island home prices at or near record levels, some LIers are turning to modular homes as an alternative. NewsdayTV's Doug Geed and Newsday business reporter Jonathan LaMantia have the details. Credit: Newsday Studios; Newsday / Howard Schnapp; File Footage

'They really have it down to a science' With Long Island home prices at or near record levels, some LIers are turning to modular homes as an alternative. NewsdayTV's Doug Geed and Newsday business reporter Jonathan LaMantia have the details.

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