PEOPLEGrammy AwardsAdd TopicBesties Taylor Swift and Selena Gomez ham it up at GrammysSinger Taylor Swift, right, and Selena Gomez arrive on the red carpet for the 58th Annual Grammy Awards in Los Angeles on February 15, 2016.Valerie Macon, AFP/Getty ImagesThe stars looked like they were enjoying themselves. Are you giggling, Selena?Paul Buck, EPAGomez chose a Calvin Klein blue number while Swift decided on an Atelier Versace crop top and full skirt.John Shearer, WireImageGomez, left, and Swift strike sexy poses.Paul Buck, EPALet's dance!Paul Buck, EPAWhat are friends for: Gomez helps Swift with her skirt.Paul Buck, EPAThe singers look so happy together.Paul Buck, EPASwift wore her signature red lipstick.Jason Merritt, Getty Images For NARASGomez and Swift squeeze each other tight!Dan MacMedan, USA TODAY NETWORKFeatured Weekly Ad