But the reality is often subtler than that—career-wise, each superstar needed something from the other. Often, one act is a bit thirstier than the other. When you encounter one of these mega-duets, you should ask yourself, Who needed this more?

Bruno Mars is ready to make a hit song with Sexyy Red. Mars, known for his epic collaborations, hopped on Instagram to celebrate his track with Lady Gaga, "Die With A Smile," topping the Hot 100 for the third week.

Found Her,” he captioned the post which features a graphic of Sexyy Red hugging on Bruno while he brushes up against her. “Yeah! It’s Sexyy,” she can be heard calling o

If Bruno Mars was in NBA Jam, he’d be on fire. The “Leave the Door Open” singer’s last two singles, “Die With A Smile” with Lady Gaga and “APT.” by Rose, each reached the top five of the Billboard Hot 100;

Lady Gaga and Bruno Mars ’ “Die With a Smile” notches a second week at No. 1 on the Billboard Hot 100. A week earlier, the ballad about flashing pearly whites just before reaching the pearly gates became Gaga’s sixth Hot 100 leader and Mars’ ninth.

Bruno Mars teaming up with female Hip-Hop artists has resulted in smash collaborations in the past, as “Finesse (Remix),” his 2018 single with Cardi B, went multi-platinum and received various awards for its accompanying music video.

Lady Gaga and Bruno Mars’ “Die With a Smile” scores its third consecutive week at No. 1 on the Billboard Hot 100 singles chart. This marks Gaga’s second longest chart-topping reign of her career, tying the three-week run at No.