Taylor Swift and Calvin Harris are a lot closer than expected at the Billboard Music Awards -- and he got the full GFE after she won an award.Ok, Calvin wasn't the first person she hugged after winning Top Billboard 200 Album -- but he IS the only one who got an extended hug combined with a neck snuggle.They haven't exactly been undercover, but this qualifies as a full couple coming out. the seating chart called for Taylor to sit with 2 friends between herself and her BF. Taylor Swift brought the house down for her final night at Los Angeles' Staples Center on Wednesday, Aug.26 — inviting Selena Gomez, Justin Timberlake, and Lisa Kudrow to join her on stage.PHOTOS: Taylor's BFFs Making her fans' dreams come true, Swift's first celebrity special guest was none other than her real-life BFF Gomez, who appeared on stage next to the 25-year-old performer wearing a tiny black and gold hotpant suit.Referring to her pal as a "multitalented performer who is good at pretty much everything she does," Swift invited Gomez up onto the stage to do her debut live performance of what Swift named "the song of the summer," "Good for You." But while the crowd went wild for Gomez, they had another treat in store later in the show — one they couldn't have imagined in their wildest dreams!
" “So @taylorswift13 is THE best person I've ever met,” Kudrow wrote about her experience later that night, via Twitter. Thanks Taylor.” Not content with whipping her audience into a wild frenzy with her first two special guests, Swift arranged for one last VIP to join her on her stage for the final L. leg of her PHOTOS: Sexy celeb dads Announcing her final guest star (who Swift revealed to be "so gracious about me fangirling"), Timberlake joined her on stage for a rendition of "Mirrors." Timberlake, who dressed in the same black jacket and jeans he'd worn to dinner earlier at Katsuya, "literally made the ground shake" when he arrived on stage, as the crowd screamed, jumped, and stamped their feet in excitement.PHOTOS: Taylor's sequin dresses One audience member particularly excited to see him on stage was wife Jessica Biel, who watched the whole performance from the crowd, accompanied by her mom."Jessica was clapping a ton and singing along to Justin's performance," a source tells Us. " Other celebs in the audience included Jaime King, Nina Dobrev, Julianne Hough, and Zelda Williams.Watch clips of all the best performances of the night in the videos above!