Ohhh those American Idol bosses are a canny lot. They drop the jibbering idiot judge (although possibly on a temporary basis) and fill her chair with some of America’s biggest celebrities and stars. Thats sure to pull them out of last year’s ratings slump.

The latest star reported to be taking on a judging stint alongside Simon and Co is ‘Skater Boy’ singer Avril Lavinge. According to EW.com, she will spend a full day critiquing auditionees for the show, as will ‘I Kissed a Girl’ singer Katy Perry.

Roll on American Idol 2010!