American Idol loser Tamyra Gray may prove to be the show's biggest winner after all. The up-and-comer is in talks to join the cast of Fox's Boston Public for a multi-episode arc. If a deal is finalized, Gray who landed a record contract with the producers behind Idol could debut by November sweeps. Meanwhile, Gray is in Las Vegas this week taping Fox's Idol reunion special, airing Monday. Among the show's highlights: Winner Kelly Clarkson will sing a duet with her idol, Reba McEntire. In other American Idol news, runner-up Justin Guarini will not fly back to Bethlehem, Pa., to fight a traffic ticket stemming from a March car accident in which he rear-ended another vehicle. The 23-year-old was scheduled to appear in court today, but his lawyer says, "flying across the country is a little extreme for a traffic ticket."