SHINee recently made a comeback with their second full length album Lucifer. They have been praised for their title track Lucifer, which has been sweeping the charts. On Music Core on the 24th, they made their second comeback stage with Lucifer and Up & Down. Backstage at the show, the guys were spending some time with SNSD's Tiffany and Yuri, practicing what they were going to say and getting nervous for their comeback. There is a certain dance in Lucifer that is called the handcuff dance. Backstage, the boys, Tiffany and Yuri were practicing the dance all together. They also practice each of their lines for what they're going to say. After that, they fool around with each other because they're still kids at heart. [gallery columns=2]