The new mom sparked speculation that she was poking fun at Swift's girl squad when she posted an Instagram pic of L'Oréal's campaign for the brand's Color Riche lipstick collection. A slew of stars posed for the photo, including the former "Gossip Girl" actress, Julianne Moore, Naomi Watts and John Legend.
"Soooo, turns out this WASN'T a video shoot for John Legend's cover of Bad Blood," Lively wrote. "@lorealparisofficial blew it out for this one. My #pinkobsession is exposed now. Ok your turn. I won't tell! #AlsoTurnsOutJohnLegendIsntCoveringBadBlood Time to start a petition!"