Heidi Montag flaunts her curves in skimpy swimsuit on set of music video after new album's VERY explicit lyrics were revealed

was spotted working on a music video in days before the release of her third album, Masterpiece.

The 39-year-old bombshell showed off her sexy side, stripping down to a revealing red swimsuit that highlighted her cleavage and abs.

She was doted on by a team, who primped her waist-length blonde locks and touched up her makeup.

The mom of two, who has been married to  since 2008, beamed in a full face of makeup finished with a glossy lip stain.

Masterpiece came out on June 26, and Montag has been steadily promoting some of the project's tracks.

In Summer Love, Montag croons, 'You've been going down all day, huh?' as well as, 'I go down easy, and you can't get enough.' 

On the , she sings the racy lyrics, 'Feel the bass, like the taste / Put me in a chokehold, spit on my face.'

'Get the cuffs, I'm a s**t / Hitting high notes, like Mariah does,' she states elsewhere.

She was doted on by a team, who primped her long, straight, blonde locks and touched up her makeup