How Well Do You Know Taylor Swift's 2015?

Anywhere you look, it's obvious Taylor Swift had a gigantic 2015. From year-long domination of the Billboard 200 with her album 1989 to her celeb cameo-filled massive 1989 world tour, to the daily going-ons of her squad, Swift was everywhere. 

How well were you paying attention? Take our quiz below on what exactly Taylor Swift got up to in 2015, from an out-for-revenge music video to her famous friends. 

This Week in Billboard Chart History: In 2007, Taylor Swift's 'Song' Became Her First Country No. 1