2010s

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2010:

AT40 celebrates its 40th Anniversary on July 4.

2011:

AT40 celebrates its 41st Anniversary.  In July, the show is guest hosted by actor Neil Patriick Harris.

2012:


AT40 celebrates its 42nd Anniversary.  In June, the show is guest hosted by TV personality Jimmy Fallon, in his second time in the guest host chair.

2013:

AT40 celebrates its 43rd anniversary. Guest hosts include Britney Spears and Katy Perry.

2014:

AT40 celebrates its 44th anniversary. Casey Kasem passes away in June at age 82.  Guest hosts include Ed Sheeran and Jennifer Lopez.
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