Taylor Swift has won the biggest award at the MTV Video Music Awards _ the trophy for video of the year for ``Fortnight,'' featuring Post Malone. She thanked her boyfriend Travis Kelce and asked her fans to register to vote. Swift took home seven awards, bringing her to a career total of 30. That means she has tied Beyonce's record and both hold the title of most-awarded musician in VMA history. Sabrina Carpenter won the MTV Video Music Award for song of the year for ``Espresso.'' Katy Perry performed and accepted the Video Vanguard Award, which she received from her partner, Orlando Bloom. Chappell Roan won best new artist.