Long before Miley Cyrus twerked up a storm at the MTV Video Music Awards, there was another pop princess whose performances caused controversy at the annual show: Britney Spears. During a Good Morning America interview, Spears?who also confirmed her Las Vegas residency at Planet Hollywood?defended the 'We Can't Stop' singer's racy new image. 'I think anytime you do a performance that is that memorable, you're going to have criticism,' she explained. 'I think she's doing her thing.
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