Pop star Christina Aguilera has left fans in awe after unveiling her 40-pound weight loss in a recent photoshoot shared on her Instagram account, RadarOnline.com can reveal. Aguilera, known for hits like Beautiful and Genie In A Bottle, took to social media to showcase her slimmer figure, catching the attention of fans worldwide. In partnership with Playground’s Catherine Magee and Sandy Vukovic, Christina introduced the Dirrty Talk Intimacy Essentials Set, inspired by her iconic single Dirrty. The Instagram photos captured Aguilera in a pink dress and stilettos, highlighting her slim frame an…