Also at Annual Bash: Half of LMFAO, Pitbull, Kelly Clarkson, Plus Surprise Guests

 

 

Usher, David Guetta Get a No. 1 on Pop Songs With 'Without You'

 

The song marks the French DJ/producer/songwriter's first leader on the list, while featured artist Usher unleashes his second.

Lady Gaga: Tony Bennett Has Seen Me Naked

During Lady Gaga's 90-minute Thanksgiving special, A Very Gaga Thanksgiving, which the singer conceived and directed, she revealed some unexpected news.

1000 No. 1s: RedOne Chats About Lady Gaga's 'Just Dance'

RedOne talks about topping the Hot 100 with his co-written and produced Lady Gaga No. 1 hit, "Just Dance."

Darren Criss on Lady Gaga Encounter: 'Like Watching an Eclipse'

Darren Criss may be a star himself, but that doesn't stop him from getting starstruck. At this week's celebrity-filled Trevor Live benefit Criss said one of the coolest parts was "being backstage and rubbing elbows with people," particularly some Little Monster shaped ones.

Lady Gaga's career came full circle for a moment Friday night. The singer headlined Z100's annual Jingle Ball concert at Madison Square Garden, an event that holds special meaning to the New York native. "This was the first live show I ever went to -- whose first live show is this?" Gaga asked the sold-out, tween-heavy crowd. "I used to listen to Elvis Duran every day on the radio and imagine how one day he would be introducing my songs."