Kim Kardashian kicked off her 2011 by giving partygoers at Tao a sneak peek of her new single!
After the E! reality star did the countdown during the party she hosted in Las Vegas, she got on the mic and introduced her song, even singing along to the untitled track.
So does Kimmy K have a hit single on her hands?
"Fans screamed and snapped photos of Kim as she partied to her new song," a source says.
You can hear the song and check out the crowd's reaction yourself in the video below.