Professor Rex set a lifetime goal to perform the song "It Takes Two" by Rob Base & DJ EZ Rock in all 50 states and the District of Columbia. He currently stands at 12 of 52 (including D.C. & Puerto Rico).
California (at karaoke night at Netroots Nation in San Jose)
District of Columbia (at multiple locations, too many times to count)
Florida (at multiple locations in Tallahassee, too many times to count)
Georgia (at an Applebee's in Atlanta)
Hawaii (an the In Between in Waikiki)
Maryland (at the Big Play in College Park)
Minnesota (at karaoke night at Netroots Nation in Minneapolis)
Pennsylvania (at Yakatori Boy in Philadelphia)
Puerto Rico
Tennessee
Virginia (at Rock It Grill in Alexandria)
Washington (at numerous locations in Seattle, including Club Hula Hula)