In a recent interview, Demi Lovato dished about her and BFF Selena Gomez' rumored YouTube feud with Miley Cyrus and her BFF Mandy Jiroux. "I really don't know Miley that well," Demi said. "We [Selena and I] didn't take offense or think it was a negative or a positive." Demi actually thought it was pretty cool that Hannah Montana knew who she was! "She gave me advice on publicity and making it big, and she was like, 'I hope you're very successful.'"