Inauguration 2009! Go Inside Every Minute Of Barack Obama's Pre-Presidential Celebration!

Buh-bye Bush, hello President Obama! After months of waiting (im)patiently -- and speculating wildly over Michelle Obama's first First Lady dress -- inauguration day is finally here!

And since today's official swearing-in (which is taking place RIGHT THIS VERY MOMENT!!!!) marks the end of an error era, we figured we'd milk it by giving you detailed recap, a schedule of what's to come and the highlights of Obama's three-day "I'm About To Be Prez" bender. Enjoy!

+ First up: what's still to come! See what the First Family is up to all day -- you know, after watching the head of the household/44th President of the United States nail the inaugural address at 12:05pm.)

+ Weekend recap! Obama admits he'll "have trouble sleeping" the night before becoming the nation's next Commander-in-Chief. Plus, Pete Wentz announces he'll be leaving Ashlee and beh-beh Mowgli at home to play the Youth Inaugural ball (tonight at 10pm!), with a little help from lesser-known stars (ha!) Kanye West and Kid Rock.

+ Beyonce starts the inaugural weekend off right by headlining a star-studded bash at the Lincoln Memorial. Flip through all the live concert pics here! (Not shown: the exact moment when Honest Abe started crumping uncontrollably).

+ Celebs like Nick Cannon and Wilmer Valderrama reminisce about the day they met Barack Obama. Bonus: Usher brags about the time he swiped Barack's candy bar. Not cool, bro!

+ Silly grown-ups ... inaugurations are for kids! Miley Cyrus, Demi Lovato and the JoBros blew away fans, the Obama girls and fuhklempt Buzzworthy editors with an amazing, kid-centric performance at last night's "We Are the Future" concert. (And never mind that Miley's dress/beehive looked like something your mom would've worn to her high school prom.)

+ And don't forget the time T.I. rocked the mic at Club Love, and Jay-Z swung by the "Presidential Status" inaugural ball to drop a guest verse on Young Jeezy's "My President." A sample of the improv rhyme? "My president is black, he's black, he's half white/ So even in a racist mind, he's half right." Watch the video!

Catch every amazing detail of Barack Obama's historic ascent to the White House (update: he's delivering the inaugural address now!) by watching the entire event on live-stream and reading MTV.com's up-to-the-minute blog coverage.

Tags Ashlee Simpson, Barack Obama, Beyonce, Demi Lovato, George Bush, Jay-Z, Kanye West, Kid Rock, Michelle Obama, Miley Cyrus, Nick Cannon, Pete Wetnz, T.I., Usher, Wilmer Valderrama, Young Jeezy