The Toy Story universe has just made an addition to its talented list of actors that provide voices. Michael Keaton has now signed on to put words in the mouth of the action figure Ken, the boyfriend of the iconic Barbie doll, in the third installment of the series, IESB reports. This won't be the first time that Keaton enters the Pixar world, since the actor previously worked with the animation studio on Cars. Toy Story 3 will be released in 3D and it is set to hit theatres on June 18th, 2010.