The “Glee” cast adds another sex debuts on the Billboard Hot 100 to be released on Thursday. “Toxic” is the highest new entry at No.16, still short of Britney Spears’ peak at No.9. The song reached the peak position in the UK in March 2004 as well as a topping the European Hot 100. Co-written by Swedes Bloodshy & Avant, Henrik Jonback with Cathy Dennis, the track was initially offered to Kylie Minogue. The Sept.28 episode of “Glee” was a celebration to Britney Spears, and the actress even paid the cast a visit on the show. The episode attracted 13.5m viewers. Interesting to note, the show’s ratings took a 24% tumble the following episode.