Daily entertainment news with what to watch tonight on TV, news from the NATO summit in Chicago and the final two revealed in "American Idol."

What to watch: 'Late Show With David Letterman' on CBS at 11:35 p.m. EDT/ 10:35 p.m. CDT

Tonight, David Letterman hosts guest Sacha Baron Cohen, whose movie "The Dictator" comes out in theaters this weekend.

Trending topic: NATO summit Chicago

With the NATO summit in Chicago taking place this weekend, thousands of protesters are arriving and marching down the streets with a slew of issues to which to draw attention. Some groups include the Occupy Chicago movement, National Nurses United, Iraq Veterans Against War and LGBTQ.

Video: Final two revealed in 'American Idol'

With three contestants left in the competition, one gets eliminated. Watch to see if it's Jessica, Phillip or Joshua.

-- GateHouse News Service