Twitter goes into meltdown over Taylor Swift's celebrity-packed Bad Blood video

Taylor Swift has debuted her hotly anticipated new video for the fourth single from her album 1989 at the Billboard music awards.

The sci-fi extravaganza - a remix of the song Bad Blood featuring Kendrick Lamar - is packed with cameos from her celebrity chums, including appearances from Cara Delevingne, Lena Dunham, Ellie Goulding, Selena Gomez, Hailee Steinfeld, Karlie Kloss and Cindy Crawford.

The internet, predictably, has gone wild for the four-minute clip, which is so full of movie references that people are struggling to list them all.

Swift dominated the awards last night, winning eight awards including topartist, top female artist, top Billboard 200 artist and album, and top hot 100 artist.

British soul singer Sam Smith took the honors for top male artist and new artist.

Swift and Smith competed directly in several top categories, with Swift prevailing. Smith, 22, who had received 13 nominations to Swift's 14, also won for top radio songs artist.