Alicia Keys marked her return as host of the62nd Grammy Awardswith a somber and moving tribute to Kobe Bryant.Taking the stage after Lizzo's punchy and powerful performance of "Truth Hurts," the Grammy winner and host acknowledged the loss of the former Laker and his daughter in a helicopter crash earlier in the day."To be honest with you, we are all feeling crazy sadness right now," Keys said. "Earlier today, Los Angeles, America and the whole wild world lost a hero.