generate questions: On February 8, 2015, at the 57th Annual Grammy Awards, West walked on stage as Beck was accepting his award for Album of the Year and then walked off stage, making everyone think he was joking around. After the awards show, West stated in an interview that he was not joking and that "Beck needs to respect artistry, he should have given his award to Beyoncé". On February 26, 2015, he publicly apologized to Beck on Twitter.
Which artist's award reception did Kanye interrupt at the 57th Grammy Awards? {sep_token} To who did Kanye state that Beck should hand his award over to? {sep_token} What artist's acceptance speech did Kanye interrupt by walking on stage at the 57th Grammys? {sep_token} What day did Kanye apologize to Beck on Twitter? {sep_token}