Heidi Montag Rages Against Spencer Pratt In Song Lyrics, Calling Him A "Liar" And A "Cheat!"

Heidi Montag may be staying out of the spotlight as her (fake?) marriage to Spencer Pratt unravels, but she's speaking out in song against the man she calls a gifted liar in her new album.

"My friends are calling me everyone is telling me what you have been doing who you have been screwing.. your twisted as a liar you are gifted," she tweeted while in the studio recording her new album.

Other lyrics include "Look at me baby how I'm doing just drop like when I'm doing hahahaha.. now he says he wants me I don't need that concrete weighing on me," and "Gonna get caught sooner or later hey boy your not the one for me hey boy your not the one for me."

Last night, Heidi added another lyric to the list: "Cause I wanna let my hair down is that alright is that ok? Ill be your blond tonight if that's what you like uhhhhh stilettos and fish nets."

Sounds like Heidi is doing a lot of letting her hair down -- but when will she do it in public?