Its going to be a different evening for avid viewers of NBC’s long-running The Tonight Show.

Last Friday saw the final night of Jay Leno hosting the third longest-running entertainment program in U.S. television history. As was decided way back in 2004, Conan O’Brien is going to take over the hosting chores from Leno. After a very long wait, that day (or night) has finally arrived. June 1 sees the premiere of The Tonight Show with Conan O’Brien.

O’Brien has signed off as host of his “Late Night” show since last February with Jimmy Fallon of ”Saturday Night Live” replacing him.

For the new show, Conan is going to be joined by former sidekick Andy Richter as “announcer”. Max Weinberg and his band would also still be with O’Brien’s crew.

The first show will have Will Farrell and Pearl Jam as guests.

All these should make an interesting “Tonight” indeed.