But the reality is often subtler than that—career-wise, each superstar needed something from the other. Often, one act is a ...

Lady Gaga and Bruno Mars soar to No. 1 on the Hot 100 with “Die with a Smile,” as she collects her sixth ruler and he adds a ...

Nearly five months after the 38-year-old pop superstar teamed up with Bruno Mars for "Die with a Smile," the romantic ballad ...

Holding up her camera so that she could speak directly to fans, Gaga began the video by saying, "I am so incredibly grateful ...