Following her romantic getaway with boyfriend Calvin Harris [2], Taylor Swift partied the night away in a metallic outfit [3] at Calvin's show at Omnia Nightclub in Las Vegas on Friday. The singer, who is currently on hiatus [4], served some major face [5] while dancing in the audience to Rihanna's "We Found Love" with pals Karlie Kloss; Serayah; her brother, Austin; and YouTube star Todrick Hall [6]. Fortunately, Todrick captured the priceless moment in a video and uploaded it on Instagram, writing, "Last night was EPIC! Thank you @taylorswift for being the sweetest human on earth! Such a freakin blast!" Taylor later posted a fun clip as well, along with a caption that read, "WHERESTHEDROP @karliekloss @serayah @kennedyrayee @calvinharris." Watch the clips now, and then in honor of Taylor and Calvin's recent anniversary, check out their sweetest moments [7].