Dr. Dre and Justin Bieber had fans and viewers talking about this year's Grammy Awards show. It was the first time Dr. Dre has appeared on live TV in over ten years.
The on-stage tributes on the recording industry's biggest night were part of an effort by Grammy producers to bridge the gap between young and old, and bring in several generations of TV viewers.
Bieber, the 16 year-old Canadian who inspires fanaticism in young followers, sang "OMG" with Usher, the R&B singer and music executive who discovered him.
The audience also watched a video showing an even younger Bieber auditioning for Usher.
Usher, 32, said he was disappointed Bieber lost the best new artist Grammy to jazz prodigy Esperanza Spalding. But he said that he expects great things from the pop idol who has ridden to fame with the bubble gum crowd, on the strength of hit songs like "Baby" and "U Smile."
"His musical journey is part of his story, and as he gets older, he'll tell it," Usher said.
Bieber said that Usher has taught him a lot since he first auditioned for him three years ago. "We just rehearsed the past week for this, and he just helped me a lot," Bieber said.
Rolling Stones frontman Mick Jagger performed for the first time on the Grammy stage on Sunday, singing to honor the late Solomon Burke, a soul legend whose gospel and country-rooted delivery influenced Jagger early in his career.