Article continues below advertisementDemi Lovato is heating things up and giving fans a sneak peek of her upcoming tour.The 33-year-old singer shared a sultry Instagram Reel, strutting through an empty arena in a daring sheer black top that left little to the imagination. The braless look featured mesh paneling across her torso, paired with a high-waisted beige skirt that hugged her curves and kept the edgy vibe intact.Article continues below advertisementSource: @ddlovato/InstagramDemi Lovato shared a sultry Instagram Reel in a sheer black top.