Tuesday late night rumblings..

Hello boys and girls,

Here's a little late night entertainment news:

-Mad Men star Jon Hamm has signed on for 3 additional seasons on the hit drama.

-Pirates 4 has entered the Top 10 highest grossing films of all-time with speculations also starting to rumble about a possible Pirates 5 announcement within days.

-Conan O'Brien seems set to appear on an upcoming episode of How I Met Your Mother this fall.

-Cars 2 and Bad Teacher top this week's new movie releases.

-Terry O'Quinn from Lost has joined the cast of Hawaii Five-O.

TK