Lady Gaga and Bruno Mars perform a cover of 'California Dreaming' at the 67th Annual GRAMMY Awards, which aired on CBS and Paramount+. Lady Gaga and ROSÉ make surprise cameos in Bruno Mars ...

How did Bruno Mars become Billboard's Artist of the Year ... It was, ‘Man, there’s a good pocket on this song right now. Let’s keep it going.’ We also know when something’s not jelling.