Now Smell This! Christina Aguilera, Mariah Carey, Britney Spears Release Perfume Ads

What do Christina Aguilera, Mariah Carey and Britney Spears have in common?

If you said they possess giant boobs, a diva-like attitude and the delusion that people still care about their music, you'd be correct for the latter two singers.

But throw in the beautiful, pregnant Aguilera and here's what trait all these celebrities share: a new fragrance on the market.

The Hollywood Gossip marketing staff is here to analyze the promotional posters for all three perfumes, starting with Xtina:

Channeling her inner Justin Timberlake, Mrs. Jordan Bratman brings her sexy back to this advertising campaign. The perfume's tagline? Sometimes it's all you need to wear.

We hope Megan Fox follows that advice.

Similar to Christina, a naked Mariah Carey pimps herself out in the above ad. Said the singer about this product: "The inspirations for M by Mariah Carey were multiple places I've been, moments in my life and childhood memories. It combines my favorite scents and means so much to me. I wanted my fragrance to be like a gift to my fans."

And, hey, it only costs $175 for a half-ounce bottle!

Do you believe in a fragrance from Britney Spears? The mess of a mother hopes so, touting in her poster that "The greatest freedom is to believe in yourself."

We agree. Still, though, we're not sure why anyone would wanna smell like a train wreck. Carnage and smoke aren't an alluring combination.