IELTS is an exam that tests your ability to sit exams. Allegedly, it also tests your ability to communicate and successfully survive in an English-speaking country. The ultimate goal is to get "all 9 bands" (highest score in all 4 sections of the exam) which will open all the doors to you and let you join the elite.
Roweena had her IELTS last month and just got back the results - she is a native speaker and only managed a 7.
Mike scored all 9's on his IELTS, and he can't even talk properly!