Selena Gomez + Demi Lovato = BFFs

BFFs Selena Gomez and Demi Lovato keeps their arms locked together as they arrive at a hotel together in Toronto, Ontario on Thursday.

Demi is opening for The Jonas Brothers tonight (Friday) at the Molson Amphitheatre. Selena, who stars on the hit Disney show Wizards of Waverly Place, is here to watch Demi and the JoBros kick off the North American leg of their tour. (Demi and The Jonas Brothers star in the hit Disney film Camp Rock.)

FYI: Demi and Selena (both 15 now) sang several songs together when they starred in Barney & Friends back in 2002/2003.