Selena Gomez unaffected by Justin Bieber's arrest?

If singer Selena Gomez's Disney star-friend Demi Lovato is to be believed, the former isn't bothered about her ex-boyfriend Justin Bieber's latest run-in with the law.

Lovato appeared on Ryan Seacrest's "On Air With Ryan Seacrest" radio show recently.

"We're really, really close. And any advice I had for her, we talked last night and it's between us. But I love her so much. We have an incredible friendship, (she's) strong! She's doing really well right now," contactmusic.com quoted Lovato as saying.

Gomez's ex-boyfriend Bieber was recently arrested and charged with a driving under influence (DUI) offence following a post-club drag race in Miami.