premise: The Block (album) contains only an unofficial single.
hypothesis: The Block (album) . The first official single from the album is `` Summertime '' and the song was released on May 13 , 2008 . The second official single titled `` Single '' featuring Ne-Yo was released on August 12 , 2008 . The third single `` Dirty Dancing '' was released on December 19 . The album 's fourth single , `` 2 in the Morning '' , was officially released February 23 , 2009 in the United States and the United Kingdom .