Rappers Jay-Z and Kanye West revealed the first set of dates Monday for their upcoming "Watch the Throne Tour," scheduled to kick off May 20th at the O2 Arena in London and running through June 13th when the duo hit the LG Arena in Birmingham.  The duo only dropped a total of twelve dates so far, but said that more dates will drop in the next few weeks.  Click Here for a complete list of dates announced so far.