Taylor Swift and the Backstreet Boys?! Sign us up! On Instagram Monday, frontman AJ McLean shared a new video jamming out to a mashup of his boy band's song Everybody along with T-Swizzle's new song Elizabeth Taylor from The Life of a Showgirl. In the caption of his video, he wrote: "Come on now you know one of us had to! @taylorswift !" Watch (below): View this post on Instagram A post shared by Alexander James (@aj_mclean) Cool!! Related: Taylor Inviting EVERYONE To Wedding... Except Blake Lively! Tay Tay saw it right away, too! In the comments, she excitedly said: "OH HI AJ OH MY GOD" See for yourself (below): (c) AJ McLean/Instagram Aww! Too cute! We love to see legends supporting legends. What an exciting moment for the fangirl! Reactions, Perezcious readers? [Image via MEGA/WENN] The post Taylor Swift Reacts To AJ McLean's Backstreet Boys Mashup With <i>The Life Of A Showgirl</i>! appeared first on Perez Hilton.