Lady Gaga has announced several new California "Mayhem Ball" tour dates. Find out how to snag the cheapest available tickets ...

“Die With a Smile” spent five weeks at No. 1 on the Billboard Hot 100 earlier this year — first hitting the top of the chart ...

It's Mars' 10th entry in YouTube's Billion Views Club & Gaga's fourth ... Mars’ venue-opening concert at the Intuit Dome in Inglewood, California. “Die With a Smile” spent five weeks ...