Khu.sh's Prerna Gupta Pioneers High-Tech Music for the Masses This 29-year-old CEO has her sights set on expansion with her apps LaDiDa and Songify and seed funding from angel investors. Part of our annual Young Millionaires report.

Prerna Gupta wants to change the way music is made. Her philosophy? Anyone can do it, and everyone should do it. The 29-year-old is co-founder and CEO of Atlanta-based Khu.sh, which releases iPhone apps to facilitate exactly that.

Khu.sh's main product, LaDiDa, is described as "reverse karaoke." Here's how it works: A user sings into the iPhone mic, and the technology composes unique background music to match, automatically employing pitch correction and other vocal effects. An amusing YouTube demo shows Parag Chordia, Gupta's husband and Khu.sh's co-founder and CTO, warbling off-key into his phone such phrases as, "Here I am, singing very badly in public" and, "You will know at the end why I've subjected you to this." He then stops, punches a button on the screen and out pump his "lyrics," laced into a surprisingly catchy, loungy music track.

LaDiDa debuted in October 2009, spun out of technology Chordia developed while heading the Music Intelligence Lab at the Georgia Institute of Technology.