Calvin Harris Congratulates Girlfriend Taylor Swift on Grammy Win

Swift took home three Grammy Awards Monday night, including album of the year.

Swift took home three Grammys on Monday night, including best pop vocal album for "1989" and best music video for "Bad Blood."

She celebrated her Grammy wins with Harris later that night at Hyde nightclub in Los Angeles.

The 26-year-old pop star and 32-year-old producer/DJ have been dating for about a year.