Britney Spears is ready for what has turned out to be a European adventure. The “Circus” singer is officially confirmed to perform on the X-Factor just after her stint on Star Academy. Set for Nov. 29, Spears follows several high profile performances on the hit UK based show. In related news, Britney’s highly anticipated performance on Good Morning America has a new venue — the circus ! That’s right. Britney Spears will perform at The Big Apple Circus on Dec. 2, the release date for her album and her 27th birthday. The show, which seems quite accurate in relation to her album title, will be aired on ABC’s Good Morning America starting at 7am EST.