Ester Dean is the songwriter and producer behind hit tracks from Rihanna, Usher, Christina Aguilera, Nicki Minaj, Katy Perry, and many others. If you're humming it, odds are she wrote it. Here's the 411 on music's secret weapon.

This 28 year old former gospel performer is the reigning queen of R&B hits, and you probably have no idea who she is.But that could change very soon...

In Hollywood, baby photos are big business, and magazines are willing to pay huge sums for just the right shot. Here's a jaw-dropping list of the most expensive baby photos ever.