TEXAS: Selena Gomez says pal Demi Lovato is like her sister . Gomez has now revealed that they have fought like siblings since they became close aged seven on US kids show Barney and Friends, but have come out stronger than ever. “I think what people forget is that she’s actually been there for me, too. I’ve known her since we were best friends since we were seven,” she said. “We had a time where we did grow apart, but there’s not a single person on this planet that knows me like she does. “She goes into my darkest place, and she goes into my lightest most incredible memories.–Show