Nine songs from Adam Lambert's forthcoming album, 'Trespassing', have been revealed in a partial album track list leak.

MJ's Big Blog claims guest spots and writing credits for Katy Perry and Pharrell Williams.

The album is due out in March and it will be the American Idol runner up's second LP following his debut 'For Your Entertainment' in 2009.

The unconfirmed partial track list is as follows:

1. Trespassing by Adam Lambert & Pharrell Williams
2. Cookoo (Katy Perry co-writer)
3. Broken English by Adam Lambert and Lester Mendez
4. Underneath
5. Kickin In - ft Pharrell
6. Chokehold
7. Outlaws of Love by Adam Lambert and BC Jean
8. Shady
9. Better Than I Know Myself