Though he has not even been announced as an official performer,
Kanye West reportedly has been rehearsing a tribute to his late mother, Donda, for Sunday's Grammy Awards. According to
People, West - the show's most-nominated contender this year - will deliver a medley that will include "Stronger" and "Hey Mama."
For more coverage of Sunday's kudoscast, check our Grammy Awards special, featuring predictions, photos, video, a reader poll and more.