NAS IS ‘STILL ILL’ Queens rapper Nas was at 4th and B downtown on Friday, March 29. He performed a variety of songs including everything from his first hit ‘The World is Yours’ to his latest ‘One Mic’ off the Stillmatic album. Nas blew up the spot when he performed the battle rap ‘Ether’ directed at rival N.Y. rapper Jay-Z. Aaron Pratts (left) Anthony DeCosta (above) / Daily Aztec