Unforgettable French Montana Feat. Swae Lee Download 'Unforgettable' on iTunes
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Lady Gaga's 14 Craziest Moments
Not content with wearing a Kermit or a slab of steak on her head, Gaga is rumoured to have instructed her designers to create a hat filled with live cockroaches. A study by students in New York found the bugs responded to her music more than songs by any other artist, causing Gaga to name them her "real life monsters".