Christmas has come early for all you Lovatics! Demi Lovato has steadily been releasing songs from her upcoming fourth studio album 'DEMI.' Harnessing the enthusiasm (or impatience) of her fans, Demi tweeted:

Since Demi is so faithful to her fans, she is revealing each song as the intensity of her fans' tweets increases, hence the landing page Lovatics Speed Up Time on her website. So far, 12 of the 13 'DEMI' tracks have been posted to the singer's website (including 'Heart Attack).

The album's second track, entitled 'Made in the USA,' is a peppy tune that compares Lovato's love to products made in the good ol' United States of America. She sings a metaphor that her romance with a special boy is strong and built Ford tough or rather, "runs deep like a Chevy," as Demi sings in the very first line of the track.

Other highlights from the posted tracks include 'Neon Lights,' am upbeat EDM-inspired tune that screams "Make me a single!" By the sound of it, it could inspire other remixes, not unlike those of her track 'Heart Attack.'

The sound of this record (from what we've heard so far) isn't totally groundbreaking, but Demi is definitely showing off her vocal chops, especially on tracks like 'Nightingale,''In Case' and her girl power anthem 'Firestarter.'

Keep 'em comin', Demi!

Update: As of 5:30 PM EST, all 13 'DEMI' tracks were available for listening!

Watch the Demi Lovato 'Heart Attack' Video

Listen to Demi Lovato, 'Made in the U.S.A.'

Listen to Demi Lovato, 'Without the Love'

Listen to Demi Lovato, 'Neon Lights'

Listen to Demi Lovato, 'Two Pieces'

Listen to Demi Lovato, 'Nightingale'

Listen to Demi Lovato, 'In Case'

Listen to Demi Lovato, 'Really Don't Care' Feat. Cher Lloyd

Listen to Demi Lovato, 'Firestarter'

Listen to Demi Lovato, 'Something That We're Not'

Listen to Demi Lovato, 'Never Been Hurt'

Listen to Demi Lovato, 'Shouldn't Come Back'

Listen to Demi Lovato, 'Warrior'