Fans of Santigold will beg, borrow and break down doors to get into a free show. At the invite-only Absolut X concert Thursday night, fans were caught sneaking in the back door at the Roseland Ballroom for her high-energy performance. The singer pulled off an hourlong show and invited about 25 fans on stage. Questlove opened the concert with a crowd-pleasing DJ set. There was artwork by Sanford Biggers, and Kehinde Wiley, known for his portraits of African men, was spotted in the crowd.