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. She's being herself, so I give props to her."