Alasdair McLellanWant to feel like Sam Smith is dancing right in the room with you? Now, with the help of some cutting edge AR technology, you can.All you need is the Spotify app and two smartphones — so grab a friend. Here’s how it works: …

Brian Friedman/NBCU Photo Bank/NBCUniversal via Getty Images via Getty ImagesOne of Camila Cabello’s style signatures is her super-long, dark, wavy hair.  Well, it was one of her signatures — until she chopped it off.
Posting a photo of herself …

SGranitz/WireImageJustin Timberlake lured his fans to his Instagram with a throwback shirtless pic, and then — plot twist! — turned the post into a rallying cry for them to go to the polls.
Justin posted a photo of himself back in his *NSYNC da…