By LAURA SCHREFFLER
Worse for the wear: Britney Spears leaves The Sugar Factory in Las Vegas looking worse for the wear last night
She called it one of the most magical nights of her life.
Which is why Britney Spears appears to have celebrated as much as she could.
The 30-year-old singer reveled in the news of her engagement to boyfriend Jason Trawick at his 40th birthday last night in Las Vegas.
She didn't even try to hide her glee as she and her new fiance partied into the wee hours. However hours later, she emerged from the Chateau Nightclub & Gardens looking a little bit worse for wear.
Escort service: The newly engaged couple needed a bit of help heading out of the club
Earlier in the night she looked stunning and smooth in her flesh toned Herve Leger bandage dress with flawless makeup and perfect hair.
But later she appeared to need a little helping hand as she left the Sugar Factory American Brasserie,
Having a laugh: Britney holds hands and has a giggle with a male friend while exiting the nightclub
Her eye makeup was smeared, her curls had gone lank and her dress was covered up by a male pal's grey blazer.
She also showed off a nasty-looking foot injury, which may have been a remnant from her recent Femme Fatale tour.
Both her agent husband-to-be and a male friend held her hand at separate times as they exited the Sin City establishments.
Tears of joy: The couple celebrated with thousands of fans last night in Las Vegas
She grabbed some 'I Want Candy' tunics and tanks for herself as well as T-shirts for the boys. They also took home an array of sweets like M&Ms, Reese's Peanut Butter Cups, Hershey's Kisses and Blow Pops.
Thousands of fans were on hand to wish the couple congratulations as they entered the Chateau nightclub after their shopping spree.
Britney surprised Jason with a two-tier red velvet birthday cake as an LED screen flashed 'Happy birthday Jason.'
Magic wands: The two enjoyed treats from the Sugar Factory in Sin City