Plot: The Grammys are this weekend an Ellen knows how to get the party started -- by welcoming one of the most popular musicians in the world, the Grammy-winning RICKY MARTIN! He'll treat everyone to a performance of a song from his brand new album, "Musica+Alma+Sexo," and he might even surprise the audience with one of his biggest classic hits! One of the biggest stars around is stopping by -- SAMUEL L. JACKSON! His movies have made more than any other actor's, but nothing goes to his head -- except his many cool hats! He's always up for a fun time with Ellen