THU, 09 APRIL 2009 AT 7:19 PM

Musician John Mayer just made Demi Lovato’s day!

The 16-year-old actress/singer was hanging out with pal Selena Gomez when John tweeted, “I have ‘La La Land’ by @ddlovato stuck in my head. Actually, it’s not stuck. I’m choosing to sing it. B section is sophisticated. You’re going to make lots of records, I can tell.”

Demi proceeded to freak out just a bit — wouldn’t you? She responded, “Holy crap. THANK YOU. You’re so awesome. That is quite possibly the best compliment I’ve received in this business. Thank you so, so much….. !!!!!!”

John also had a bit of advice for the budding musician, “Write one song at a time, never apologize for any of them, ever. From Wonderland to Trio stuff, they’re all my kids.”

She tweeted once more, “See, That’s exactly what I needed to hear today. Wow. If that’s not inspiration, then I don’t know what is! You’re incredible.”

Source: Just Jared Jr.