Josephine "Yeng" Eusebio Constantino is the youngest of five siblings in the Constantino family. Her parents are Lito and Susan and her siblings are Donna, Jocelyn, Nano and Cookie. She is the 4th degree cousin of Robi Domingo, 2nd Runner Up of Pinoy Big Brother: Teen Edition Plus. She is a Born-Again Christian

Yeng Constantino won the Pinoy Dream Academy becoming the first "Grand Star Dreamer.", followed by Jay-R Siaboc, as the first runner-up.

After winning as the Pinoy Dream Academy Grand Champion, Star Records launched Yeng's debut album entitled Salamat (album), containing 10 songs, in which 7 of it were Yeng's original compositions. Her album reached its "Gold Record" two weeks after its release and then later took its "Platinum Record" after a month, followed by "3x Platinum Record" after several month of its release.

When Star Records saw the great achievement of the preppy-rocker, they produced her second album after the multi-platinum success of her debut album. On February 28, 2008, her second album Journey (Yeng Constantino album) was launched. The carrier single of the said album is "Ikaw Lang Talaga". The album contains 12 tracks, some of which were written by Yeng herself, The album reached Gold after several months.

Lapit, her third studio Album was released digitally via Star Records Official Website on October 9, 2009 then later released in physical in Music Stores Nationwide, a week after the album was pulled out due to some technical errors in the album track listing and was re-release before its grand album launch on November 1, 2009. Lapit later received a Platinum status.

On October 5, 2011. Star Records released her fourth studio album entitled Yeng Versions Live. It is her very first Live Studio Album where she sang the 80's and 90's OPM Hits. It was commercially successful to receive to a Platinum status very short period of time upon its release.

Her fifth Studio album entitled Metamorphosis is set to have its nationwide release on January 28, 2013. It's carrier single B.A.B.A.Y is currently the number one single in mymusicstore.com.ph.