With the singer who calls himself Chikezie being ousted from Fox American Idol Wednesday night -- amid criticism that he seriously miscalculated by selecting a ballad for his presentation after energetic turns earlier -- the show turned in another stellar ratings performance. Overnight ratings gave the show a 15.5 rating and a 24 share in the 9:00 p.m. hour. Earlier, at 8:00 p.m., Fox enjoyed another ratings win with its reality game show The Moment of Truth, which scored a 6.5/11. At 10:00 p.m., NBC took over the top spot with its old standby Law & Order, which recorded a 6.5/11.