Chris Willman Senior Music Writer and Chief Music Critic “Red” was unfortunately more than just a metaphor for Taylor Swift over the weekend, as fans took to social media after her Houston three-night stadium stand wrapped up to share photos and video of what looked like a gnarly injury to her hand midway through the second of three concerts in the city. On Monday, Swift took to social media and acknowledged the injury, while downplaying it, much as she had done by going on with the show Saturday despite suffering what appeared to be a bloody incident during an off-stage costume change. “For those asking how I cut my hand,” Swift said in a tweet, “I’m totally fine and it was my fault completely — tripped on my dress hem and fell in the dark backstage while running to a quick change — braced my fall with my palm. It was all very Mercury in retrograde coded. Don’t worry about me I’m gooooood,” she added, blowing fans an emoji kiss.