As reported by the New York Post, Taylor Swift didn't differentiate too much from her favorite shimmery dresses much inspired by 1920s flapper style when dating John Mayer. However, there was something that was different about Swift's look, despite the similar fashion choices. At the 2009 Z100 Jinglebell performance, at which Swift performed alongside then-boyfriend Mayer, she could be seen rocking a bright red lip (via the New York Post). Though not the craziest fashion statement, before this point Swift always kept things neutral on her lips, instead opting for a simple smoky eye. With this subtle change, she was perhaps signaling to the world that she was growing up and changing her style.
Plus, from that moment on, Swift seemed to sport red lips far more often. Just a couple of months before she started dating Mayer, Swift was seen wearing a gold ballgown to the 2009 Country Music Awards, with her hair down in ringlets and her lips a peachy pink (via Cosmopolitan). However, at a number of events throughout 2010, she can be seen with the red lip that would later become her signature for her 2012 album, aptly titled "Red".
