Michael Jackson has broken the record books by becoming the first pop artist to win four posthumous prizes at this year’s American Music Awards.Members of the Jackson clan, including Janet and Jermaine, were on hand in Los Angeles to honour their brother, who died aged 50 in June. Jermaine Jackson said: “On behalf of the family and the fans, I’d like to say thank you. Thank you so much, We love you Michael.” The big winner of the night was Taylor Swift. The country star paid tribute to Jackson after scooping five awards, including artist of the year. “To even be mentioned in a category with Michael Jackson, who we will miss and love forever, is an unimaginable honour and I just want to say I’m sending my love to the Jackson family and Janet,” Swift said. Elsewhere, rock trio Greenday won favourite alternative artist and come-back diva Whitney Houston picked up an international award of excellence.