I recently purchased the new Lady GaGa Viva Glam lipstick, and I have to say I absolutely love it! It is a beautiful nude, and I think that it would be flattering on almost all skintones. If you are into nudes, you will definitely love this product. The lipstick goes on smoothly and is very creamy. It is quite matte though so I would recommend wearing a lip gloss over it if you are not into the matte look. Also, make sure that you wear some chapstick because it can be a bit drying.
The color on me (I have ~NC30 skin):