The hard-to-surprise host Ellen DeGeneres got a treat in her 2,000th episode for the "Ellen DeGeneres Show" and it's a throwback with two of her first few guests circa 2003.

Today reports that DeGeneres is usually that one who is doing the surprise job, but this time, her staff secretly brought Jennifer Aniston and Justin Timberlake back, just how they appeared the first time in the show.

"This is a surprise for me and all I know is that I love our first guests I'm told," DeGeneres said, then Aniston made her entrance in the set, carrying along her a memento she had brought for DeGeneres in 2003 -- a welcome mat.

"You know how hard it is to surprise this person?" Aniston told the crowd, referring to the Emmy award-winning host. "It's very hard."

Aniston was also the one who made the entrance speech for Timberlake. Explaining how awesome her second show has been with the 34-year-old crooner, she said "it's time to bring sexy back."

Both of the guests were proud to have surprised the 57-year-old host. "I thought for sure you knew, or that [you'd] find out," the Memphis-born singer said.

DeGeneres said she was happy to have "two of her favorite people" again to her show, but Timberlake wanted to know who between him and Aniston is her most favorite. The host was challenged to pick only one.

"It's such a no-brainer," said Aniston, to which DeGeneres said that it would be "the both of you together, as one unit."

For 13 seasons, the host's show was said to arguably be her "best Hollywood venture to date" according to E! News. After maintaining the show for more than a decade, seeing her laugh, cry, dance and be in all comedic forms, the 2,000th episode of her show marks as a feat for her career.

The host said that from her 2,000 episodes, she had a total of 859,200 audience, 8,302 guests and 1,145 bands to have played in the set. She also joked in her monologue that if she was told firstly that she will be doing 2,000 shows, she "would've asked for a lot more money" because "two thousand is a lot."

But the best gift that she had probably received during the celebration was from the president of Warner Bros. Television Group. Because of her show's huge success, her stage--Stage 1--was granted to be called forevermore as "The Ellen Stage."

Roth said that the recognition is only the fourth time that has happened in Warner Bros. 90-year history, to which DeGeneres has become misty-eyed.

"Honestly, on behalf of all of us, you're a treasure. You're a national treasure and now a Warner Bros. treasure," Roth added.