You go, Taylor Swift!
[ Related: Taylor Rules... No, Literally! ]
The top spot had belonged to Kim Kardashian West, but as of early Tuesday morning, she's listed with 45.4 million followers on the social network.
Swift now has 45.5 million, representing the first time she's been able to take the top spot on IG!
Lots of theories as to why Swift takes the crown now; surely her 1989 world tour...