President Barack Obama, and Justin Timberlake World Premiere!

The Commander in Chief is on Ellen via satellite from Washington D.C.! PRESIDENT BARACK OBAMA will be talking to our host from the White House, and Ellen is ready to entertain her VIP guest with an inspiring conversation. Both Pres. Obama and our host have proven their dance moves, their desire for good, and their Twitter skills. Now the leader of the free world, and the champion of comedy will get into the President's health care initiative. From L.A. to D.C., Ellen rolls out the red carpet for the United States' fearless and brilliant head of state!

He brought "SexyBack," he's always on his "Suit & Tie," and now Justin Timberlake is treating Ellen and her fans to his latest music video for his song "Not a Bad Thing"! The pop anthem is the third single off Justin's album "The 20/20 Experience – 2 of 2," and is wooing hearts everywhere. It will be an incredible thing when Ellen shows her friend's latest work to the world! Get ready to "Rock Your Body"!

LAUREN GRAHAM is here! The actress has played some of the coolest TV moms ever, doubling as everyone's best friend on "Gilmore Girls," and keeping it hip yet aloof on the hit series "Parenthood." Lauren's always full of funny tales when she sits down with Ellen -- like when she got lost in Vietnam, and when she attended our host's anniversary party. The actress became an author with the release of her debut novel, "Someday, Someday Maybe," which immediately topped The New York Times Best-Seller list. The stories continue when she hits the hot seat again today! 

Most people know SHAUN WHITE as a hunky Olympic snowboarder, but the athlete will join Ellen this time around as a rock star! Shaun's band, Bad Things, released their debut album this year, and it's a surge of synth, pop and rock -- perfectly suited for blasting on the car stereo on the open road. Shaun will tell Ellen all there is to know about hitting the high notes on the slopes… and the microphone! 

Plus, DEREK & JULIANNE HOUGH shall dance!

This Tuesday, Ellen's hosting a talent show!