Although it's just a rumor, Miley Cyrus could be performing in a Britney Spears tribute at the 2011 MTV VMA Awards.
The rumor has Miley singing "I’m A Slave 4 U" with a snake draped around her neck. She then would join Selena Gomez and Demi Lovato in singing Britney's song "3".
The entire tribute is rumored to be eight minutes long to start the awards show. It would also feature Katy Perry, Rihanna, Nicki Minaj and Britney herself. The goal of the tribute is to get people talking the next day, similar to some of Britney's VMA performances have done in the past.
The 2011 MTV VMA Awards are August 28th at 9pm /8pm central.
Source: Britney Spears fansite Breathe Heavy.